diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 2bac0a66a..36b763c2a 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2007-07-06  Corinna Vinschen  <corinna@vinschen.de>
+
+	* times.cc (gettimeofday): Align definition to POSIX.
+
 2007-07-06  Corinna Vinschen  <corinna@vinschen.de>
 
 	* cygwin.din: Export wcstol, wcstoll, wcstoul, wcstoull, wcsxfrm.
diff --git a/winsup/cygwin/times.cc b/winsup/cygwin/times.cc
index 336a649da..6dbdc0107 100644
--- a/winsup/cygwin/times.cc
+++ b/winsup/cygwin/times.cc
@@ -150,8 +150,9 @@ hires_ms NO_COPY gtod;
 
 /* FIXME: Make thread safe */
 extern "C" int
-gettimeofday (struct timeval *tv, struct timezone *tz)
+gettimeofday (struct timeval *tv, void *tzvp)
 {
+  struct timezone *tz = (struct timezone *) tzvp;
   static bool tzflag;
   LONGLONG now = gtod.usecs ();