diff --git a/.github/workflows/build-api.yaml b/.github/workflows/build-api.yaml
index 6f194c2..20f0e4b 100644
--- a/.github/workflows/build-api.yaml
+++ b/.github/workflows/build-api.yaml
@@ -25,4 +25,4 @@ jobs:
             API_PORT=5000
           context: .
           push: false
-          tags: basil/api:${BRANCH_NAME}
+          tags: basil/api:${{ env.BRANCH_NAME }}