diff --git a/web/src/elements/CodeMirror.ts b/web/src/elements/CodeMirror.ts
index b47ad3416..ac80312f3 100644
--- a/web/src/elements/CodeMirror.ts
+++ b/web/src/elements/CodeMirror.ts
@@ -5,6 +5,7 @@ import CodeMirror from "codemirror";
 import "codemirror/addon/display/autorefresh";
 import "codemirror/mode/xml/xml.js";
 import "codemirror/mode/yaml/yaml.js";
+import "codemirror/mode/javascript/javascript.js";
 import "codemirror/mode/python/python.js";
 
 @customElement("ak-codemirror")