diff --git a/crates/cli/src/playground.html b/crates/cli/src/playground.html
index 147516ac1..9805b9aeb 100644
--- a/crates/cli/src/playground.html
+++ b/crates/cli/src/playground.html
@@ -470,7 +470,7 @@
     <script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/6.65.7/codemirror.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/clusterize.js/0.19.0/clusterize.min.js"></script>
 
-    <script>LANGUAGE_BASE_URL = "";</script>
+    <script>LANGUAGE_BASE_URL = ".";</script>
     <script type="module" src="playground.js"></script>
     <script type="module">
       import * as TreeSitter from './web-tree-sitter.js';