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diff --git a/src/WOKTclTools/WOKTclTools_Interpretor.cxx b/src/WOKTclTools/WOKTclTools_Interpretor.cxx
index 4af79f59895aa0407e6654ef7331ee0856598f37..8f4c050bd88adc8a4f3402c4aae0673142fc17db 100755 (executable)
--- a/src/WOKTclTools/WOKTclTools_Interpretor.cxx
+++ b/src/WOKTclTools/WOKTclTools_Interpretor.cxx
@@ -445,11 +445,13 @@ Standard_Boolean WOKTclTools_Interpretor::GetReturnValues(WOKTools_Return& retva
     {
       retval.AddStringValue(argv[i]);
     }
+  if ( argc > 1 ) {
 #if defined( WNT ) && defined( _DEBUG )
-  Free ( argv );
+    Free ( argv );
 #else
-  free(argv);
+    free(argv);
 #endif  // WNT && _DEBUG
+  }
   return Standard_False;
 }