diff --git a/timeout b/timeout
index ee61f49..56cb989 100755
--- a/timeout
+++ b/timeout
@@ -31,7 +31,7 @@ check_pid() {
 	PID=$1
 	LOOP=$2
 
-	for i in $(seq 1 "$LOOP"); do
+	for _ in $(seq 1 "$LOOP"); do
 		test -d "/proc/$PID/" && sleep 1 || STATUS=0
 	done