diff --git a/rq/worker.py b/rq/worker.py
index 897c66c..2be8aae 100644
--- a/rq/worker.py
+++ b/rq/worker.py
@@ -242,7 +242,7 @@ class Worker(object):
             """Stops the current worker loop but waits for child processes to
             end gracefully (warm shutdown).
             """
-            self.log.debug('Got %s signal.' % signal_name(signum))
+            self.log.debug('Got signal %s.' % signal_name(signum))
 
             signal.signal(signal.SIGINT, request_force_stop)
             signal.signal(signal.SIGTERM, request_force_stop)