diff --git a/.github/workflows/build-and-push.yml b/.github/workflows/build-and-push.yml
index 53d301f..7d2adb2 100644
--- a/.github/workflows/build-and-push.yml
+++ b/.github/workflows/build-and-push.yml
@@ -50,7 +50,7 @@ jobs:
         run: docker run --rm swift-devcontainer:test-${{ github.sha }} xtool --help
 
       - name: Verify zsign help
-        run: docker run --rm swift-devcontainer:test-${{ github.sha }} zsign -h
+        run: docker run --rm swift-devcontainer:test-${{ github.sha }} bash -c "zsign -h 2>&1 | grep -Eq 'Usage: zsign|codesign alternative'"
 
       - name: Verify Theos directory
         run: docker run --rm swift-devcontainer:test-${{ github.sha }} test -d /opt/theos