diff --git a/qt6-after/qt6-migrated-legatus/CMakeLists.txt b/qt6-after/qt6-migrated-legatus/CMakeLists.txt
index 4ab79adf3..f093b36be 100755
--- a/qt6-after/qt6-migrated-legatus/CMakeLists.txt
+++ b/qt6-after/qt6-migrated-legatus/CMakeLists.txt
@@ -780,7 +780,10 @@ ENDIF()
 # Ein paar NGL-spezifische Macros
 #
 INCLUDE(NGLMacros)
-INCLUDE(MacroCodeGenIdl)
+# Skip MacroCodeGenIdl for release builds as CodeGen module is excluded
+IF(NOT RELEASE_BUILD)
+  INCLUDE(MacroCodeGenIdl)
+ENDIF()
 
 #
 # Projektspezifische Einstellungen?