diff --git a/net/atm/resources.h b/net/atm/resources.h
index 1d004aa..126fb18 100644
--- a/net/atm/resources.h
+++ b/net/atm/resources.h
@@ -13,7 +13,7 @@
 extern struct list_head atm_devs;
 extern struct mutex atm_dev_mutex;
 
-int atm_dev_ioctl(unsigned int cmd, void __user *arg);
+int atm_dev_ioctl(unsigned int cmd, void __user *arg, int compat);
 
 
 #ifdef CONFIG_PROC_FS