diff --git a/owlps-listener/owlps-listenerd.c b/owlps-listener/owlps-listenerd.c
index 99ef912..103a6d5 100644
--- a/owlps-listener/owlps-listenerd.c
+++ b/owlps-listener/owlps-listenerd.c
@@ -1261,7 +1261,7 @@ void* autocalibrate(void *NULL_value)
       if (nread <= 0 && owl_run)
         {
           if (owl_run)
-            fprintf(stderr, "No message received from aggregator!\n") ;
+            perror("No message received from aggregator") ;
           continue ;
         }