diff --git a/bin/letsencrypt-add.sh b/bin/letsencrypt-add.sh
index a3e9563..faf4713 100755
--- a/bin/letsencrypt-add.sh
+++ b/bin/letsencrypt-add.sh
@@ -59,7 +59,8 @@ if [[ -f /etc/ssl/letsencrypt/$domain.pem ]]; then
 fi
 
 # check that letsencrypt-deploy.path is enabled
-if [[ ! systemctl --quiet is-enabled letsencrypt-deploy.path ]]; then
+if ! systemctl --quiet is-enabled letsencrypt-deploy.path
+then
   echo "letsencrypt-deploy.path is not enabled."
   exit 1
 fi