diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index fd2e26b6f96619fa88d93ed6b4437a257971a52f..85c52fd26bff0a612fb14f4574e9fc5d8d2246cd 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -51,7 +51,6 @@
 #define HARD_MSGMAX 	(131072/sizeof(void*))
 #define DFLT_MSGSIZEMAX 8192	/* max message size */
 
-#define NOTIFY_COOKIE_LEN	32
 
 struct ext_wait_queue {		/* queue of sleeping tasks */
 	struct task_struct *task;