diff --git a/include/linux/wanrouter.h b/include/linux/wanrouter.h
index 3add874..e0aa396 100644
--- a/include/linux/wanrouter.h
+++ b/include/linux/wanrouter.h
@@ -522,7 +522,7 @@
 extern void wanrouter_proc_cleanup(void);
 extern int wanrouter_proc_add(struct wan_device *wandev);
 extern int wanrouter_proc_delete(struct wan_device *wandev);
-extern int wanrouter_ioctl( struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);
+extern long wanrouter_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 
 /* Public Data */
 /* list of registered devices */