diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index 59c5d43..6e7847d 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -74,7 +74,9 @@ jobs:
     - name: Build all targets (cabal)
       run: cabal v2-build --enable-tests --enable-benchmarks all
     - name: Run all tests (cabal)
-      run: MAESTRO_API_KEY=${{ secrets.MAESTRO_API_KEY }} cabal v2-test maestro-sdk-tests
+      env: 
+        MAESTRO_API_KEY: ${{ secrets.MAESTRO_API_KEY }}
+      run: cabal v2-test maestro-sdk-tests
     - name: Run doctest (docspec)
       run: |
         # Install docspec and run doctests.