diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 15c948f..12db567 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -26,7 +26,7 @@ jobs:
           threshold-total: 95
       - name: make coverage badge
         uses: action-badges/core@0.2.2
-        if: contains(github.ref, 'main')
+        if: contains(fromJSON('["master", "main"]'), github.ref)
         with:
           label: coverage
           message: ${{ steps.coverage.outputs.badge-text }}