diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5716658..884699f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -518,8 +518,10 @@
 	atomic_t inotify_watches; /* How many inotify watches does this user have? */
 	atomic_t inotify_devs;	/* How many inotify devs does this user have opened? */
 #endif
+#ifdef CONFIG_POSIX_MQUEUE
 	/* protected by mq_lock	*/
 	unsigned long mq_bytes;	/* How many bytes can be allocated to mqueue? */
+#endif
 	unsigned long locked_shm; /* How many pages of mlocked shm ? */
 
 #ifdef CONFIG_KEYS
diff --git a/kernel/user.c b/kernel/user.c
index f42a68e..9cb6f64 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -44,7 +44,6 @@
 	.processes	= ATOMIC_INIT(1),
 	.files		= ATOMIC_INIT(0),
 	.sigpending	= ATOMIC_INIT(0),
-	.mq_bytes	= 0,
 	.locked_shm     = 0,
 #ifdef CONFIG_KEYS
 	.uid_keyring	= &root_user_keyring,
@@ -341,8 +340,9 @@
 		atomic_set(&new->inotify_watches, 0);
 		atomic_set(&new->inotify_devs, 0);
 #endif
-
+#ifdef CONFIG_POSIX_MQUEUE
 		new->mq_bytes = 0;
+#endif
 		new->locked_shm = 0;
 
 		if (alloc_uid_keyring(new, current) < 0) {