diff --git a/.github/workflows/build-all.yml b/.github/workflows/build-all.yml
index cd6a8dd599..d3c2c11f3c 100644
--- a/.github/workflows/build-all.yml
+++ b/.github/workflows/build-all.yml
@@ -189,7 +189,7 @@ jobs:
     # When I make it function it causes an error.
     # This is something I need to look into in the future.
     - name: Test Cabal Install (Linux)
-      if: ${{ contains(matrix.os, 'linux') }}
+      if: ${{ matrix.os == 'linux' }}
       run: cabal install --overwrite-policy=always --project=${{ matrix.project-file }} --ghc-options="-Wwarn"
 
     # Save artifacts.