diff --git a/.circleci/config.yml b/.circleci/config.yml
index 5d6471103a25..1ff373563cbc 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -301,13 +301,7 @@ workflows:
       - build-gdevelop_js-wasm-only
   gdevelop_js-wasm-extra-checks:
     jobs:
-      - build-gdevelop_js-debug-sanitizers-and-extra-checks:
-          # Extra checks are resource intensive so don't all run them.
-          filters:
-            branches:
-              only:
-                - master
-                - /experimental-build.*/
+      - build-gdevelop_js-debug-sanitizers-and-extra-checks
   builds:
     jobs:
       - build-macos:
diff --git a/GDevelop.js/scripts/lint-with-clang-tidy.js b/GDevelop.js/scripts/lint-with-clang-tidy.js
index 110d40947f37..4b269697818b 100644
--- a/GDevelop.js/scripts/lint-with-clang-tidy.js
+++ b/GDevelop.js/scripts/lint-with-clang-tidy.js
@@ -4,11 +4,13 @@ const path = require('path');
 const { makeSimplePromisePool } = require('./utils/SimplePromisePool');
 
 const gdevelopRootPath = path.resolve(__dirname, '../../');
-const sourcesRootPath = path.join(gdevelopRootPath, 'Core/GDCore');
+const coreSourcesRootPath = path.join(gdevelopRootPath, 'Core/GDCore');
+const extensionSourcesRootPath = path.join(gdevelopRootPath, 'Extensions');
 const excludedPaths = [
-  'Tools/Localization.cpp', // emscripten code which can't be linted
-  'Serialization/Serializer.cpp', // Diagnostic that can't be ignored in rapidjson.
+  'Core/GDCore/Tools/Localization.cpp', // emscripten code which can't be linted
+  'Core/GDCore/Serialization/Serializer.cpp', // Diagnostic that can't be ignored in rapidjson.
 ];
+const supportedExtensions = ['.cpp', '.h', '.hpp'];
 
 async function findClangTidy() {
   const tryClangTidy = (clangTidyCommandName) =>
@@ -78,18 +80,18 @@ function findFiles(directoryPath) {
 
   list.forEach((file) => {
     const filePath = path.resolve(directoryPath, file);
-    const relativePath = path.relative(sourcesRootPath, filePath);
+    const relativePath = path.relative(gdevelopRootPath, filePath);
 
     const stat = fs.statSync(filePath);
     if (stat && stat.isDirectory() && !excludedPaths.includes(relativePath)) {
       results = results.concat(findFiles(filePath));
     } else {
       if (
-        path.extname(filePath) === '.inl' ||
+        (!supportedExtensions.includes(path.extname(filePath))) ||
         path.basename(filePath) === '.gitignore' ||
         excludedPaths.includes(relativePath)
       ) {
-        // Ignore .inl files
+        // Ignore the file.
       } else {
         results.push(filePath);
       }
@@ -108,7 +110,9 @@ async function main() {
     process.exit(1);
   }
 
-  const filesToCheck = findFiles(sourcesRootPath);
+  const coreFilesToCheck = findFiles(coreSourcesRootPath);
+  const extensionFilesToCheck = findFiles(extensionSourcesRootPath);
+  const filesToCheck = [...coreFilesToCheck, ...extensionFilesToCheck];
 
   // Run clang-tidy on each file.
   const filesWithErrors = [];