diff --git a/drivers/char/watchdog/sbc_epx_c3.c b/drivers/char/watchdog/sbc_epx_c3.c
index bfc475d..8882b42 100644
--- a/drivers/char/watchdog/sbc_epx_c3.c
+++ b/drivers/char/watchdog/sbc_epx_c3.c
@@ -141,7 +141,7 @@
 
 		return retval;
 	default:
-		return -ENOIOCTLCMD;
+		return -ENOTTY;
 	}
 }