diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 183dc6e58..e84aa7a57 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2012-07-06  Corinna Vinschen  <corinna@vinschen.de>
+
+	* libc/rcmd.cc: Don't undef __INSIDE_CYGWIN_NET__.
+
 2012-07-06  Corinna Vinschen  <corinna@vinschen.de>
 
 	* cygwin.sc (.rdata):  Include all sections starting with .rdata.
diff --git a/winsup/cygwin/libc/rcmd.cc b/winsup/cygwin/libc/rcmd.cc
index 8012790ec..16c05b01b 100644
--- a/winsup/cygwin/libc/rcmd.cc
+++ b/winsup/cygwin/libc/rcmd.cc
@@ -36,6 +36,7 @@ __FBSDID("$FreeBSD$");
 #else
 #define  __INSIDE_CYGWIN_NET__
 #include "winsup.h"
+#undef  __INSIDE_CYGWIN_NET__
 #endif
 
 #ifndef __CYGWIN__