--- a/app/js/CompileManager.js
+++ b/app/js/CompileManager.js
@@ -536,7 +536,7 @@ module.exports = CompileManager = {
       compileName,
       command,
       directory,
-      Settings.clsi != null ? Settings.clsi.docker.image : undefined,
+      Settings.clsi && Settings.clsi.docker ? Settings.clsi.docker.image : undefined,
       timeout,
       {},
       function(error, output) {