diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 26c3391..1e8a94e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -32,9 +32,9 @@ jobs:
       - name: Inject slug/short variables
         uses: rlespinasse/github-slug-action@v3.x
 
-      - if: github.ref === 'refs/heads/main'
+      - if: ${{ github.ref === 'refs/heads/main' }}
         run: echo ::set-output name=tag::latest
-      - if: startsWith(github.ref, 'refs/tags/')
+      - if: ${{ startsWith(github.ref, 'refs/tags/') }}
         run: echo ::set-output name=tag::${GITHUB_REF#refs/*/}
 
       - if: env.tag