diff --git a/include/linux/file.h b/include/linux/file.h
index f5bbd4c..d3b1a15 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -59,9 +59,9 @@
 extern void put_filp(struct file *);
 extern int get_unused_fd(void);
 extern void FASTCALL(put_unused_fd(unsigned int fd));
-struct kmem_cache_s;
-extern void filp_ctor(void * objp, struct kmem_cache_s *cachep, unsigned long cflags);
-extern void filp_dtor(void * objp, struct kmem_cache_s *cachep, unsigned long dflags);
+struct kmem_cache;
+extern void filp_ctor(void * objp, struct kmem_cache *cachep, unsigned long cflags);
+extern void filp_dtor(void * objp, struct kmem_cache *cachep, unsigned long dflags);
 
 extern struct file ** alloc_fd_array(int);
 extern void free_fd_array(struct file **, int);