diff --git a/sbin/update-ca-certificates b/sbin/update-ca-certificates
index 91d8024..0122c99 100755
--- a/sbin/update-ca-certificates
+++ b/sbin/update-ca-certificates
@@ -71,7 +71,7 @@ do
echo "$0: [--verbose] [--fresh]"
exit;;
esac
-  shift
+  [ $# -gt 0 ] && shift
done

if [ ! -s "$CERTSCONF" ]