diff --git a/ph-schematron-pure/src/test/java/com/helger/schematron/pure/supplementary/Issue083Test.java b/ph-schematron-pure/src/test/java/com/helger/schematron/pure/supplementary/Issue083Test.java
new file mode 100644
index 000000000..9cf616556
--- /dev/null
+++ b/ph-schematron-pure/src/test/java/com/helger/schematron/pure/supplementary/Issue083Test.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2014-2021 Philip Helger (www.helger.com)
+ * philip[at]helger[dot]com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.helger.schematron.pure.supplementary;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.File;
+
+import javax.annotation.Nonnull;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.helger.commons.io.resource.FileSystemResource;
+import com.helger.schematron.SchematronDebug;
+import com.helger.schematron.pure.SchematronResourcePure;
+import com.helger.schematron.svrl.SVRLHelper;
+import com.helger.schematron.svrl.SVRLMarshaller;
+import com.helger.schematron.svrl.jaxb.SchematronOutputType;
+
+public final class Issue083Test
+{
+  private static final Logger LOGGER = LoggerFactory.getLogger (Issue083Test.class);
+
+  private static void _validateAndProduceSVRL (@Nonnull final File aSchematron, @Nonnull final File aXML) throws Exception
+  {
+    final SchematronResourcePure aSCH = SchematronResourcePure.fromFile (aSchematron);
+    SchematronDebug.setSaveIntermediateXSLTFiles (true);
+
+    // Perform validation
+    final SchematronOutputType aSVRL = aSCH.applySchematronValidationToSVRL (new FileSystemResource (aXML));
+    assertNotNull (aSVRL);
+
+    final String sSVRL = new SVRLMarshaller ().getAsString (aSVRL);
+    assertNotNull (sSVRL);
+    if (true)
+      LOGGER.info ("SVRL:\n" + sSVRL);
+
+    // XXX should be 1 according to #83
+    assertEquals (0, SVRLHelper.getAllFailedAssertionsAndSuccessfulReports (aSVRL).size ());
+  }
+
+  @Test
+  public void testIssue () throws Exception
+  {
+    _validateAndProduceSVRL (new File ("src/test/resources/issues/github83/schematron.sch"),
+                             new File ("src/test/resources/issues/github83/test.xml"));
+  }
+}
diff --git a/ph-schematron-pure/src/test/resources/issues/github83/schematron.sch b/ph-schematron-pure/src/test/resources/issues/github83/schematron.sch
new file mode 100644
index 000000000..cfa464161
--- /dev/null
+++ b/ph-schematron-pure/src/test/resources/issues/github83/schematron.sch
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
+  <sch:pattern>
+    <sch:rule context="comment()">
+      <sch:assert test="false()">Found a comment</sch:assert>
+    </sch:rule>
+  </sch:pattern>
+</sch:schema>
\ No newline at end of file
diff --git a/ph-schematron-pure/src/test/resources/issues/github83/test.xml b/ph-schematron-pure/src/test/resources/issues/github83/test.xml
new file mode 100644
index 000000000..70fddf4e0
--- /dev/null
+++ b/ph-schematron-pure/src/test/resources/issues/github83/test.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?pi Processing instruction ?>
+<element attribute="value">
+  <!-- Comment -->
+  <element>Text content</element>
+</element>
\ No newline at end of file
diff --git a/ph-schematron-schxslt/src/test/java/com/helger/schematron/supplementary/Issue083Test.java b/ph-schematron-schxslt/src/test/java/com/helger/schematron/supplementary/Issue083Test.java
new file mode 100644
index 000000000..5482dacb1
--- /dev/null
+++ b/ph-schematron-schxslt/src/test/java/com/helger/schematron/supplementary/Issue083Test.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2014-2021 Philip Helger (www.helger.com)
+ * philip[at]helger[dot]com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.helger.schematron.supplementary;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.File;
+
+import javax.annotation.Nonnull;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.helger.commons.io.resource.FileSystemResource;
+import com.helger.schematron.SchematronDebug;
+import com.helger.schematron.schxslt.xslt2.SchematronResourceSchXslt_XSLT2;
+import com.helger.schematron.svrl.SVRLHelper;
+import com.helger.schematron.svrl.SVRLMarshaller;
+import com.helger.schematron.svrl.jaxb.SchematronOutputType;
+
+public final class Issue083Test
+{
+  private static final Logger LOGGER = LoggerFactory.getLogger (Issue083Test.class);
+
+  private static void _validateAndProduceSVRL (@Nonnull final File aSchematron, @Nonnull final File aXML) throws Exception
+  {
+    final SchematronResourceSchXslt_XSLT2 aSCH = SchematronResourceSchXslt_XSLT2.fromFile (aSchematron);
+    aSCH.parameters ().put ("schxslt.compile.metadata", "false");
+
+    SchematronDebug.setSaveIntermediateXSLTFiles (true);
+
+    // Perform validation
+    final SchematronOutputType aSVRL = aSCH.applySchematronValidationToSVRL (new FileSystemResource (aXML));
+    assertNotNull (aSVRL);
+
+    final String sSVRL = new SVRLMarshaller ().getAsString (aSVRL);
+    assertNotNull (sSVRL);
+    if (true)
+      LOGGER.info ("SVRL:\n" + sSVRL);
+
+    // XXX should be 1 according to #83
+    assertEquals (0, SVRLHelper.getAllFailedAssertionsAndSuccessfulReports (aSVRL).size ());
+  }
+
+  @Test
+  public void testIssue () throws Exception
+  {
+    _validateAndProduceSVRL (new File ("src/test/resources/issues/github83/schematron.sch"),
+                             new File ("src/test/resources/issues/github83/test.xml"));
+  }
+}
diff --git a/ph-schematron-schxslt/src/test/resources/issues/github83/schematron.sch b/ph-schematron-schxslt/src/test/resources/issues/github83/schematron.sch
new file mode 100644
index 000000000..cfa464161
--- /dev/null
+++ b/ph-schematron-schxslt/src/test/resources/issues/github83/schematron.sch
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
+  <sch:pattern>
+    <sch:rule context="comment()">
+      <sch:assert test="false()">Found a comment</sch:assert>
+    </sch:rule>
+  </sch:pattern>
+</sch:schema>
\ No newline at end of file
diff --git a/ph-schematron-schxslt/src/test/resources/issues/github83/test.xml b/ph-schematron-schxslt/src/test/resources/issues/github83/test.xml
new file mode 100644
index 000000000..70fddf4e0
--- /dev/null
+++ b/ph-schematron-schxslt/src/test/resources/issues/github83/test.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?pi Processing instruction ?>
+<element attribute="value">
+  <!-- Comment -->
+  <element>Text content</element>
+</element>
\ No newline at end of file
diff --git a/ph-schematron-xslt/src/test/java/com/helger/schematron/supplementary/Issue083Test.java b/ph-schematron-xslt/src/test/java/com/helger/schematron/supplementary/Issue083Test.java
new file mode 100644
index 000000000..d9ead6456
--- /dev/null
+++ b/ph-schematron-xslt/src/test/java/com/helger/schematron/supplementary/Issue083Test.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2014-2021 Philip Helger (www.helger.com)
+ * philip[at]helger[dot]com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.helger.schematron.supplementary;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.io.File;
+
+import javax.annotation.Nonnull;
+
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.helger.commons.io.resource.FileSystemResource;
+import com.helger.schematron.SchematronDebug;
+import com.helger.schematron.sch.SchematronResourceSCH;
+import com.helger.schematron.svrl.SVRLHelper;
+import com.helger.schematron.svrl.SVRLMarshaller;
+import com.helger.schematron.svrl.jaxb.SchematronOutputType;
+
+public final class Issue083Test
+{
+  private static final Logger LOGGER = LoggerFactory.getLogger (Issue083Test.class);
+
+  private static void _validateAndProduceSVRL (@Nonnull final File aSchematron, @Nonnull final File aXML) throws Exception
+  {
+    final SchematronResourceSCH aSCH = SchematronResourceSCH.fromFile (aSchematron);
+    SchematronDebug.setSaveIntermediateXSLTFiles (true);
+
+    // Perform validation
+    final SchematronOutputType aSVRL = aSCH.applySchematronValidationToSVRL (new FileSystemResource (aXML));
+    assertNotNull (aSVRL);
+
+    final String sSVRL = new SVRLMarshaller ().getAsString (aSVRL);
+    assertNotNull (sSVRL);
+    if (true)
+      LOGGER.info ("SVRL:\n" + sSVRL);
+
+    // XXX should be 1 according to #83
+    assertEquals (0, SVRLHelper.getAllFailedAssertionsAndSuccessfulReports (aSVRL).size ());
+  }
+
+  @Test
+  public void testIssue () throws Exception
+  {
+    _validateAndProduceSVRL (new File ("src/test/resources/issues/github83/schematron.sch"),
+                             new File ("src/test/resources/issues/github83/test.xml"));
+  }
+}
diff --git a/ph-schematron-xslt/src/test/resources/issues/github83/schematron.sch b/ph-schematron-xslt/src/test/resources/issues/github83/schematron.sch
new file mode 100644
index 000000000..cfa464161
--- /dev/null
+++ b/ph-schematron-xslt/src/test/resources/issues/github83/schematron.sch
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2">
+  <sch:pattern>
+    <sch:rule context="comment()">
+      <sch:assert test="false()">Found a comment</sch:assert>
+    </sch:rule>
+  </sch:pattern>
+</sch:schema>
\ No newline at end of file
diff --git a/ph-schematron-xslt/src/test/resources/issues/github83/test.xml b/ph-schematron-xslt/src/test/resources/issues/github83/test.xml
new file mode 100644
index 000000000..70fddf4e0
--- /dev/null
+++ b/ph-schematron-xslt/src/test/resources/issues/github83/test.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?pi Processing instruction ?>
+<element attribute="value">
+  <!-- Comment -->
+  <element>Text content</element>
+</element>
\ No newline at end of file