diff --git a/provision/letsencrypt.sh b/provision/letsencrypt.sh
index 64e0df2e..c073d701 100755
--- a/provision/letsencrypt.sh
+++ b/provision/letsencrypt.sh
@@ -468,7 +468,7 @@ install_deploy_scripts()
 
 update_haproxy_ssld()
 {
-       if [ ! -d $ZFS_DATA_MNT/haproxy" ]; then
+       if [ ! -d "$ZFS_DATA_MNT/haproxy" ]; then
                # haproxy not installed, nothing to do
                return
        fi