diff --git a/.github/workflows/build-macos.yml b/.github/workflows/build-macos.yml
index 9eb8f8eab8..2794dbcc81 100755
--- a/.github/workflows/build-macos.yml
+++ b/.github/workflows/build-macos.yml
@@ -47,6 +47,9 @@ jobs:
           tar -xf simgrid-v3.36.tar.gz
           cd simgrid-v3.36
           #sed -I ""  "s/gfortran/gfortran -L\/opt\/homebrew\/lib\//" CMakeLists.txt
+          mkdir build
+          cd build
+          cmake ..
           make -j4
           sudo make install
       - name: Source Build and Test