diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 72809b5..863cc67 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -31,6 +31,9 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v2
 
+      - run: brew install tree
+        if: matrix.os == 'macos-latest'
+
       - run: echo "LOCAL_PATH=$HOME/.local/bin" >> $GITHUB_ENV
 
       - name: Setup path