diff --git a/.github/workflows/CI.yaml b/.github/workflows/CI.yaml
index 42d1a88..217d316 100644
--- a/.github/workflows/CI.yaml
+++ b/.github/workflows/CI.yaml
@@ -40,6 +40,7 @@ jobs:
           environment-name: red
           create-args: >- # beware the >- instead of |, we don't split on newlines but on spaces
             python=${{ matrix.python-version }}
+          init-shell: true # Required for the make commands to work on Mac
 
       - name: Install package
         # conda setup requires this special shell