diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 2d9e528cb..49ec41f90 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -25,11 +25,10 @@ jobs:
           pip install pytest
           pip install -r requirements.txt
           pip install multiprocess
-      - name: Setting up environment variables
-        if: ${{ contains(matrix.os, 'macos') }}
-        run: echo "1" >> $FFP_CONTRACT_OFF
       - name: Build package
         run: pip install -e .
+        env: 
+          FFP_CONTRACT_OFF: 1
       - name: Output package contents
         run: | 
           pip show rebound -vf