diff --git a/include/net/timewait_sock.h b/include/net/timewait_sock.h
index d7a306e..1e1ee32 100644
--- a/include/net/timewait_sock.h
+++ b/include/net/timewait_sock.h
@@ -15,7 +15,7 @@
 #include <net/sock.h>
 
 struct timewait_sock_ops {
-	kmem_cache_t	*twsk_slab;
+	struct kmem_cache	*twsk_slab;
 	unsigned int	twsk_obj_size;
 	int		(*twsk_unique)(struct sock *sk,
 				       struct sock *sktw, void *twp);