diff --git a/.github/workflows/oxipng.yml b/.github/workflows/oxipng.yml
index f3daa443..e0398759 100644
--- a/.github/workflows/oxipng.yml
+++ b/.github/workflows/oxipng.yml
@@ -112,7 +112,9 @@ jobs:
           | sarif-fmt
 
       - name: Run Check for all feature combinations
-        run: cargo hack --feature-powerset --exclude-features sanity-checks,system-libdeflate check --all-targets -- -D warnings
+        run: cargo hack --feature-powerset --exclude-features sanity-checks,system-libdeflate check --all-targets
+        env:
+          RUSTFLAGS: -D warnings
 
       - name: Run tests
         run: |