diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9959b61ece..929de4a5aa 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -407,6 +407,7 @@ jobs:
       jobname: ${{matrix.vector.jobname}}
       CC: ${{matrix.vector.cc}}
       CI_JOB_IMAGE: ${{matrix.vector.image}}
+      CUSTOM_PATH: /custom
     runs-on: ubuntu-latest
     container: ${{matrix.vector.image}}
     steps: