diff --git a/sys/sys/signal.h b/sys/sys/signal.h
index 6d9f5eab7a63..0130e1a55e5f 100644
--- a/sys/sys/signal.h
+++ b/sys/sys/signal.h
@@ -1 +1 @@
-revision 1.4 intentionally removed
+revision 1.5 intentionally removed