diff --git a/Fwk/AppFwk/cafProjectDataModel/cafPdmXml/cafPdmXmlObjectHandleMacros.h b/Fwk/AppFwk/cafProjectDataModel/cafPdmXml/cafPdmXmlObjectHandleMacros.h
index ed9e777526..339dc96070 100644
--- a/Fwk/AppFwk/cafProjectDataModel/cafPdmXml/cafPdmXmlObjectHandleMacros.h
+++ b/Fwk/AppFwk/cafProjectDataModel/cafPdmXml/cafPdmXmlObjectHandleMacros.h
@@ -38,6 +38,10 @@ public: \
     QString ClassName::classKeywordStatic() { return keyword;   } \
     static bool PDM_OBJECT_STRING_CONCATENATE(pdm_object_factory_init_, __LINE__) = caf::PdmDefaultObjectFactory::instance()->registerCreator<ClassName>() 
 
+#define CAF_PDM_XML_ABSTRACT_SOURCE_INIT(ClassName, keyword) \
+    bool    ClassName::Error_You_forgot_to_add_the_macro_CAF_PDM_XML_HEADER_INIT_and_or_CAF_PDM_XML_SOURCE_INIT_to_your_cpp_file_for_this_class() { return false;} \
+    \
+    QString ClassName::classKeywordStatic() { return keyword;   } \
 
 #define CAF_PDM_XML_InitField(field, keyword) \
 { \