diff --git a/docker-mods/nginx-proxy-manager/root/etc/cont-init.d/98-themepark b/docker-mods/nginx-proxy-manager/root/etc/cont-init.d/98-themepark
index 411ce339..8bdef50b 100644
--- a/docker-mods/nginx-proxy-manager/root/etc/cont-init.d/98-themepark
+++ b/docker-mods/nginx-proxy-manager/root/etc/cont-init.d/98-themepark
@@ -4,7 +4,7 @@ echo '--------------------------------------'
 echo '| Nginx Proxy Manager theme.park Mod |' 
 echo '--------------------------------------'
 
-if [ -d "/app/frontend" ] then
+if [[ -d "/app/frontend" ]]; then
     APP_FILEPATH='/app/frontend/' # jc21/nginx-proxy-manager
 else
     APP_FILEPATH='/opt/nginx-proxy-manager/frontend/' # jlesage/nginx-proxy-manager