diff --git a/src/include/libpq/pqcomm.h b/src/include/libpq/pqcomm.h
index a11c30ca3bb..0ed84ca22f7 100644
--- a/src/include/libpq/pqcomm.h
+++ b/src/include/libpq/pqcomm.h
@@ -9,7 +9,7 @@
  * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pqcomm.h,v 1.87 2003/06/23 23:51:59 momjian Exp $
+ * $Id: pqcomm.h,v 1.88 2003/06/24 01:49:22 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -47,6 +47,10 @@
 #define	_SS_PAD2SIZE	(_SS_MAXSIZE - (sizeof (sa_family_t) + \
 				_SS_PAD1SIZE + _SS_ALIGNSIZE))
 
+#ifdef __CYGWIN__
+typedef unsigned short sa_family_t;
+#endif
+
 struct sockaddr_storage {
 #ifdef SALEN
     uint8_t	__ss_len;        /* address length */