diff --git a/.github/workflows/auth.yml b/.github/workflows/auth.yml
index f1bf50ec..7c1b8199 100644
--- a/.github/workflows/auth.yml
+++ b/.github/workflows/auth.yml
@@ -39,4 +39,4 @@ jobs:
       - name: Select Xcode 15.3
         run: sudo xcode-select -s /Applications/Xcode_15.3.app
       - name: Run tests
-        run: PLATFORM=${{ matrix.platform }} SCHEME=Auth make test-library
+        run: PLATFORM="${{ matrix.platform }}"" SCHEME=Auth make test-library