diff --git a/.jest.node.js b/.jest.node.js
index c66c206ef6..4065b36ef2 100644
--- a/.jest.node.js
+++ b/.jest.node.js
@@ -1,3 +1,4 @@
+// jest config for server render environment
 module.exports = {
   setupFiles: [
     './tests/setup.js',