diff --git a/.github/workflows/pr_check_client_side_changes.yml b/.github/workflows/pr_check_client_side_changes.yml
index 6f10c95633..4ec7b16827 100644
--- a/.github/workflows/pr_check_client_side_changes.yml
+++ b/.github/workflows/pr_check_client_side_changes.yml
@@ -5,6 +5,7 @@ on:
       - main
     paths:
       - 'packages/playwright-core/src/client/**/*'
+      - 'packages/playwright-core/src/utils/isomorphic/**/*'
       - 'packages/playwright/src/matchers/matchers.ts'
 jobs:
   check: