diff --git a/cbits/cmsg.c b/cbits/cmsg.c
--- a/cbits/cmsg.c
+++ b/cbits/cmsg.c
@@ -1,3 +1,4 @@
+#include <stddef.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 
diff --git a/network-msg.cabal b/network-msg.cabal
--- a/network-msg.cabal
+++ b/network-msg.cabal
@@ -1,5 +1,5 @@
 name: network-msg
-version: 0.6
+version: 0.7
 category: Network
 build-type: Simple 
 cabal-version: >= 1.6