diff --git a/src/DIRAC/Core/Security/Locations.py b/src/DIRAC/Core/Security/Locations.py
index 3c9fa6cdeb9..d89450e8a61 100644
--- a/src/DIRAC/Core/Security/Locations.py
+++ b/src/DIRAC/Core/Security/Locations.py
@@ -140,9 +140,9 @@ def getCertificateAndKeyLocation():
     if "X509_USER_CERT" in os.environ:
         if os.path.exists(os.environ["X509_USER_CERT"]):
             certfile = os.environ["X509_USER_CERT"]
-    if not certfile:
-        if os.path.exists(os.environ["HOME"] + "/.globus/usercert.pem"):
-            certfile = os.environ["HOME"] + "/.globus/usercert.pem"
+    if not certfile and (home := os.environ.get("HOME")):
+        if os.path.exists(home + "/.globus/usercert.pem"):
+            certfile = home + "/.globus/usercert.pem"
 
     if not certfile:
         return False
@@ -151,9 +151,9 @@ def getCertificateAndKeyLocation():
     if "X509_USER_KEY" in os.environ:
         if os.path.exists(os.environ["X509_USER_KEY"]):
             keyfile = os.environ["X509_USER_KEY"]
-    if not keyfile:
-        if os.path.exists(os.environ["HOME"] + "/.globus/userkey.pem"):
-            keyfile = os.environ["HOME"] + "/.globus/userkey.pem"
+    if not keyfile and (home := os.environ.get("HOME")):
+        if os.path.exists(home + "/.globus/userkey.pem"):
+            keyfile = home + "/.globus/userkey.pem"
 
     if not keyfile:
         return False
diff --git a/src/DIRAC/Resources/Computing/HTCondorCEComputingElement.py b/src/DIRAC/Resources/Computing/HTCondorCEComputingElement.py
index d83fe2a9294..e7f012bfaa3 100644
--- a/src/DIRAC/Resources/Computing/HTCondorCEComputingElement.py
+++ b/src/DIRAC/Resources/Computing/HTCondorCEComputingElement.py
@@ -66,7 +66,7 @@
 from DIRAC.WorkloadManagementSystem.Client import PilotStatus
 from DIRAC.WorkloadManagementSystem.Client.PilotManagerClient import PilotManagerClient
 from DIRAC.FrameworkSystem.private.authorization.utils.Tokens import writeToTokenFile
-from DIRAC.Core.Security.Locations import getCAsLocation, getCertificateAndKeyLocation
+from DIRAC.Core.Security.Locations import getCAsLocation
 from DIRAC.Resources.Computing.BatchSystems.Condor import HOLD_REASON_SUBCODE, subTemplate, parseCondorStatus
 
 MANDATORY_PARAMETERS = ["Queue"]
@@ -250,14 +250,18 @@ def _executeCondorCommand(self, cmd, keepTokenFile=False):
         }
 
         if self.useSSLSubmission:
-            if not (certAndKey := getCertificateAndKeyLocation()):
-                return S_ERROR("You want to use SSL Submission, but no certificate and key are present")
+            certFile = "/home/dirac/.globus/usercert.pem"
+            keyFile = "/home/dirac/.globus/userkey.pem"
+            if not (os.path.exists(certFile) and os.path.exists(keyFile)):
+                return S_ERROR(
+                    "You want to use SSL Submission, but certificate and key are not present in /home/dirac/.globus/"
+                )
             if not (caFiles := getCAsLocation()):
                 return S_ERROR("You want to use SSL Submission, but no CA files are present")
             htcEnv = {
                 "_condor_SEC_CLIENT_AUTHENTICATION_METHODS": "SSL",
-                "_condor_AUTH_SSL_CLIENT_CERTFILE": certAndKey[0],
-                "_condor_AUTH_SSL_CLIENT_KEYFILE": certAndKey[1],
+                "_condor_AUTH_SSL_CLIENT_CERTFILE": certFile,
+                "_condor_AUTH_SSL_CLIENT_KEYFILE": keyFile,
                 "_condor_AUTH_SSL_CLIENT_CADIR": caFiles,
                 "_condor_AUTH_SSL_SERVER_CADIR": caFiles,
                 "_condor_AUTH_SSL_USE_CLIENT_PROXY_ENV_VAR": "false",