diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 45c0bea370a..c603d1f5d25 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -145,7 +145,7 @@ jobs:
           ZULIP_BOT_EMAIL: ${{ secrets.ZULIP_BOT_EMAIL }}
           ZULIP_API_TOKEN: ${{ secrets.ZULIP_API_TOKEN }}
         run: |
-          ~/.local/bin/zulip-send --stream miri --subject "Cron Job Failure $(date -uI)" \
+          ~/.local/bin/zulip-send --stream miri --subject "Cron Job Failure (miri, $(date -u +%Y-%m))" \
             --message 'Dear @**RalfJ** and @**oli**
 
           It would appear that the Miri cron job build failed. Would you mind investigating this issue?