diff --git a/.github/workflows/cantdidnt.yaml b/.github/workflows/cantdidnt.yaml
index e30ef5ec..d6100f3a 100644
--- a/.github/workflows/cantdidnt.yaml
+++ b/.github/workflows/cantdidnt.yaml
@@ -3,7 +3,7 @@ name: Deploy cantdidnt for Libera
 on:
   push:
     branches:
-      - $default-branch
+      - ${{ github.event.repository.default_branch }}
 
 env:
   PROJECT_ID: ${{ secrets.GKE_PROJECT }}