diff --git a/src/mms/iso_mms/server/mms_get_namelist_service.c b/src/mms/iso_mms/server/mms_get_namelist_service.c
index 3d77c360..0b1e3185 100644
--- a/src/mms/iso_mms/server/mms_get_namelist_service.c
+++ b/src/mms/iso_mms/server/mms_get_namelist_service.c
@@ -343,7 +343,7 @@ createNameListResponse(
         }
 
         if (startElement == NULL) {
-            mmsMsg_createServiceErrorPdu(invokeId, response, MMS_ERROR_ACCESS_OBJECT_ACCESS_UNSUPPORTED);
+            mmsMsg_createServiceErrorPdu(invokeId, response, MMS_ERROR_ACCESS_OBJECT_NON_EXISTENT);
             return;
         }
     }