diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 7afb90be1..55d6a64ee 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,8 @@
+Thu Sep  6 20:04:05 2001  Christopher Faylor <cgf@cygnus.com>
+
+	* fhandler_socket.cc (fhandler_socket::fhandler_socket): Ensure that
+	prot_info_ptr is zeroed for later use.
+
 Thu Sep  6 14:03:49 2001  Christopher Faylor <cgf@cygnus.com>
 
 	* cygheap.cc (cygheap_fixup_in_child): Don't consider a NULL bucket as
diff --git a/winsup/cygwin/fhandler_socket.cc b/winsup/cygwin/fhandler_socket.cc
index aabaa47b7..a434a0129 100644
--- a/winsup/cygwin/fhandler_socket.cc
+++ b/winsup/cygwin/fhandler_socket.cc
@@ -45,7 +45,7 @@ fhandler_socket::fhandler_socket (const char *name) :
 {
   set_cb (sizeof *this);
   set_need_fork_fixup ();
-  prot_info_ptr = (LPWSAPROTOCOL_INFOA) cmalloc (HEAP_BUF,
+  prot_info_ptr = (LPWSAPROTOCOL_INFOA) ccalloc (HEAP_BUF, 1,
 					         sizeof (WSAPROTOCOL_INFOA));
 }