diff --git a/apps/aqhome-cgi/service_file.c b/apps/aqhome-cgi/service_file.c
index 371900e..eabafd0 100644
--- a/apps/aqhome-cgi/service_file.c
+++ b/apps/aqhome-cgi/service_file.c
@@ -213,6 +213,9 @@ int _addUser(AQH_SERVICE *sv, AQH_USER *user)
     GWEN_DB_Group_free(db);
     return 0;
   }
+  else {
+    DBG_ERROR(NULL, "Missing alias");
+  }
   return GWEN_ERROR_INVALID;
 }