diff --git a/src/ipc.c b/src/ipc.c
index deb46ab..f9270bc 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -97,7 +97,7 @@ static void warn_unrecognized(const char *which)
 	if (once)
 		return;
 	once = true;
-	fprintf(stderr, "Warning: one or more unrecognized %s attributes", which);
+	fprintf(stderr, "Warning: one or more unrecognized %s attributes\n", which);
 }
 
 static FILE *userspace_interface_file(const char *interface)