diff --git a/DataStructures/XMLParser.h b/DataStructures/XMLParser.h
index 15a77526f..3c4889c22 100644
--- a/DataStructures/XMLParser.h
+++ b/DataStructures/XMLParser.h
@@ -74,7 +74,7 @@ public:
                 _Relation r;
                 r.type = _Relation::unknown;
                 if(!(*relationCallback)(r))
-                    std::cerr << "[error] relation not parsed" << std::endl;
+                    std::cerr << "[XMLParser] relation not parsed" << std::endl;
             }
             xmlFree( currentName );
         }