diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index d51714b8d..7f32ab0a5 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2005-11-09  Scott Finneran  <scottf@pacom.com>
+
+	* include/cygwin/signal.h: Add missing sigrelse prototype.
+
 2005-11-08  Christopher Faylor  <cgf@timesys.com>
 
 	* fhandler_base.cc (fhandler_base::readv): Free buf, not a pointer into
diff --git a/winsup/cygwin/include/cygwin/signal.h b/winsup/cygwin/include/cygwin/signal.h
index bd1d33c04..477903ac5 100644
--- a/winsup/cygwin/include/cygwin/signal.h
+++ b/winsup/cygwin/include/cygwin/signal.h
@@ -222,6 +222,7 @@ struct sigaction
 int sigwait (const sigset_t *, int *);
 int sigwaitinfo (const sigset_t *, siginfo_t *);
 int sighold (int);
+int sigrelse (int);
 int sigqueue(pid_t, int, const union sigval);
 int siginterrupt (int, int);
 #ifdef __cplusplus