diff --git a/.github/workflows/daily-image-tests.yml b/.github/workflows/daily-image-tests.yml
index b1b5919502..eab056acb6 100644
--- a/.github/workflows/daily-image-tests.yml
+++ b/.github/workflows/daily-image-tests.yml
@@ -1,6 +1,9 @@
 name: Daily broken images check
 
 on:
+  pull_request:
+    branches:
+      - main
   schedule:
     # Every Weekday at 8 AM AEDT - https://cron.help/#0_21_*_*_SUN-THU
     - cron: "0 21 * * SUN-THU"