diff --git a/src/message_router_generator.h b/src/message_router_generator.h
index d0c525b4..26d67413 100644
--- a/src/message_router_generator.h
+++ b/src/message_router_generator.h
@@ -154,7 +154,7 @@ namespace etl
     //********************************************
     bool has_successor() const
     {
-      return (has_successor());
+      return (successor != nullptr);
     }
 
     enum