diff --git a/packages/playwright-ct-react/registerSource.mjs b/packages/playwright-ct-react/registerSource.mjs
index 2827d4d8ab..813ff4d88b 100644
--- a/packages/playwright-ct-react/registerSource.mjs
+++ b/packages/playwright-ct-react/registerSource.mjs
@@ -33,6 +33,7 @@ function isJsxComponent(component) {
 }
 
 /**
+ * Turns the Playwright representation of JSX (see jsx-runtime.js) into React.createElement calls.
  * @param {any} value
  */
 function __pwRender(value) {
@@ -40,7 +41,7 @@ function __pwRender(value) {
     if (isJsxComponent(v)) {
       const component = v;
       let type = component.type;
-      if (type && type.__pw_jsx_fragment) // detects the playwright mock Fragment (see jsx-runtime.js), used in <></> notation
+      if (type && type.__pw_jsx_fragment)
         type = __pwReact.Fragment;
       const props = component.props ? __pwRender(component.props) : {};
       const key = component.key ? __pwRender(component.key) : undefined;
diff --git a/packages/playwright/jsx-runtime.js b/packages/playwright/jsx-runtime.js
index 28df099d02..ff3d79e34e 100644
--- a/packages/playwright/jsx-runtime.js
+++ b/packages/playwright/jsx-runtime.js
@@ -32,6 +32,7 @@ function jsxs(type, props, key) {
   };
 }
 
+// this is used in <></> notation
 const Fragment = { __pw_jsx_fragment: true };
 
 module.exports = {