Index: uspace/app/perf/ipc/ping_pong.c
===================================================================
--- uspace/app/perf/ipc/ping_pong.c	(revision d5caf7922353a9ff31141de881200acc494919a3)
+++ uspace/app/perf/ipc/ping_pong.c	(revision 043d464fc984ff0747f267473f19a93b734f3d8d)
@@ -42,5 +42,5 @@
 	if (rc != EOK) {
 		snprintf(error, error_size,
-		    "failed contacting IPC test server: %s (%d)",
+		    "failed contacting IPC test server (have you run /srv/test/ipc-test?): %s (%d)",
 		    str_error(rc), rc);
 		return false;