diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9e0b37e4..f2ccb34e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -31,7 +31,7 @@ jobs:
 
       - name: Install MEOS
         env:
-          BRANCH_NAME: ${{ github.head_ref || github.ref_name }}
+          BRANCH_NAME: ${{ github.base_ref || github.ref_name }}
         run: |
           git clone --branch ${{ env.BRANCH_NAME }} --depth 1 https://github.com/MobilityDB/MobilityDB
           mkdir MobilityDB/build