diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index dae754a7..7ec52471 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -18,7 +18,7 @@ jobs:
 
     - name: Configure system
       run: |
-          brew install brew install cmake gfortran open-mpi pkg-config fftw boost
+          brew install cmake gfortran open-mpi pkg-config fftw boost
 
     - name: Configure CMake
       run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}