diff --git a/drivers/char/watchdog/pcwd.c b/drivers/char/watchdog/pcwd.c
index cd7d1b6..6f8515d 100644
--- a/drivers/char/watchdog/pcwd.c
+++ b/drivers/char/watchdog/pcwd.c
@@ -572,7 +572,7 @@
 
 	switch(cmd) {
 	default:
-		return -ENOIOCTLCMD;
+		return -ENOTTY;
 
 	case WDIOC_GETSUPPORT:
 		if(copy_to_user(argp, &ident, sizeof(ident)))