diff --git a/scripts/fix-pjax-api.js b/scripts/fix-pjax-api.js
index 6a638ad..a6b1f96 100644
--- a/scripts/fix-pjax-api.js
+++ b/scripts/fix-pjax-api.js
@@ -1,3 +1,7 @@
+/**
+ * This script rewrites code of pjax-api to resolve few issues on FireFox.
+ * This is a bit dirty but really effective.
+ */
 const fs = require('fs').promises
 const path = require('path')