diff --git a/databind/src/main/java/tech/ydb/yoj/databind/schema/Schema.java b/databind/src/main/java/tech/ydb/yoj/databind/schema/Schema.java
index 164aa150..530a823c 100644
--- a/databind/src/main/java/tech/ydb/yoj/databind/schema/Schema.java
+++ b/databind/src/main/java/tech/ydb/yoj/databind/schema/Schema.java
@@ -109,26 +109,26 @@ protected Schema(Schema<?> schema, String subSchemaFieldPath) {
         JavaField subSchemaField = schema.getField(subSchemaFieldPath);
 
         @SuppressWarnings("unchecked") ReflectType<T> rt = (ReflectType<T>) subSchemaField.field.getReflectType();
-        reflectType = rt;
+        this.reflectType = rt;
 
-        schemaKey = schema.schemaKey.withClazz(reflectType.getRawType());
+        this.schemaKey = schema.schemaKey.withClazz(reflectType.getRawType());
 
-        staticName = schema.staticName;
-        globalIndexes = schema.globalIndexes;
+        this.staticName = schema.staticName;
+        this.globalIndexes = schema.globalIndexes;
 
         if (subSchemaField.fields != null) {
-            fields = subSchemaField.fields.stream().map(this::newRootJavaField).toList();
+            this.fields = subSchemaField.fields.stream().map(this::newRootJavaField).toList();
         } else {
             if (subSchemaField.getCustomValueTypeInfo() != null) {
                 var dummyField = new JavaField(new DummyCustomValueSubField(subSchemaField), subSchemaField, __ -> true);
                 dummyField.setName(subSchemaField.getName());
-                fields = List.of(dummyField);
+                this.fields = List.of(dummyField);
             } else {
-                fields = List.of();
+                this.fields = List.of();
             }
         }
-        ttlModifier = schema.ttlModifier;
-        changefeeds = schema.changefeeds;
+        this.ttlModifier = schema.ttlModifier;
+        this.changefeeds = schema.changefeeds;
     }
 
     private void validateFieldNames() {