diff --git a/dom/build-brick-and-break_test.js b/dom/build-brick-and-break_test.js
index b2e7e603d..4669fe5d9 100644
--- a/dom/build-brick-and-break_test.js
+++ b/dom/build-brick-and-break_test.js
@@ -19,7 +19,7 @@ tests.push(async ({ page, eq }) => {
     const divs = await page.$$eval('div', (nodes) => nodes.length)
     console.log(`step ${repeat + 1}: ${divs} bricks`)
     buildSteps.push(divs)
-    await page.waitFor(1000)
+    await page.waitForTimeout(1000)
     repeat++
   }
 
@@ -42,7 +42,7 @@ const allBricksIds = [...Array(54).keys()].map((i) => `brick-${i + 1}`)
 
 tests.push(async ({ page, eq, getBricksIds }) => {
   // check that all the bricks are here and have the correct id
-  await page.waitFor(3000)
+  await page.waitForTimeout(3000)
   const bricksIds = await getBricksIds()
   eq(bricksIds, allBricksIds)
 })
diff --git a/subjects/build-brick-and-break/README.md b/subjects/build-brick-and-break/README.md
index 11dbf588f..205b2bb06 100644
--- a/subjects/build-brick-and-break/README.md
+++ b/subjects/build-brick-and-break/README.md
@@ -30,11 +30,11 @@ Today, your mission is to build a 3-column brick tower, maintain it and finally
 - [dataset](https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/dataset) / [`data-*`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/data-*)
 - [`remove()`](https://developer.mozilla.org/en-US/docs/Web/API/ChildNode/remove)
 
-### Provided files
+### Files
 
-You have at your disposal the following file that you can download to test locally:
+You only need to create & submit the JS file `build-brick-and-break.js` ; we're providing you the following file to download (click right and save link) & test locally:
 
-- the HTML file [index.html](/public/subjects/build-brick-and-break/index.html) to open in the browser, which includes:
+- the HTML file [build-brick-and-break.html](/public/subjects/build-brick-and-break/build-brick-and-break.html) to open in the browser, which includes:
 
   - the JS script running some code, and which will also allow to run yours
   - some CSS pre-styled classes: feel free to use those as they are, or modify them
diff --git a/subjects/build-brick-and-break/index.html b/subjects/build-brick-and-break/build-brick-and-break.html
similarity index 100%
rename from subjects/build-brick-and-break/index.html
rename to subjects/build-brick-and-break/build-brick-and-break.html