diff --git a/common/modules/mixly-modules/web/footerlayer-example.js b/common/modules/mixly-modules/web/footerlayer-example.js
index 9a4667af..df73b161 100644
--- a/common/modules/mixly-modules/web/footerlayer-example.js
+++ b/common/modules/mixly-modules/web/footerlayer-example.js
@@ -78,7 +78,7 @@ class FooterLayerExampleExt extends FooterLayerExample {
 
     dataToWorkspace(inPath) {
         const data = goog.get(path.join(Env.boardDirPath, 'examples', inPath));
-        this.updateCode(inPath.substring(inPath.lastIndexOf('.')), data);
+        this.updateCode(path.extname(inPath), data);
     }
 }