diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4a09866..9cbf5c9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -37,7 +37,7 @@ jobs:
       run: nimble install -y
     - name: Build and run tests
       run: |
-        if [[ ${{ matrix.platform.os }} = macos ]]; then
+        if [[ '${{ matrix.platform.os }}' == 'macos' ]]; then
           export PATH="$(brew --prefix llvm@14)/bin:${PATH}"
           export LDFLAGS="-L$(brew --prefix libomp)/lib -L$(brew --prefix llvm@14)/lib -Wl,-rpath,$(brew --prefix llvm@14)/lib"
           compiler_extra_options="-d:LeopardCmakeFlags='-DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=$(brew --prefix llvm@14)/bin/clang -DCMAKE_CXX_COMPILER=$(brew --prefix llvm@14)/bin/clang++' -d:LeopardExtraCompilerlags='-fopenmp' -d:LeopardExtraLinkerFlags='-fopenmp -L$(brew --prefix libomp)/lib'"