diff --git a/.github/workflows/copilot-triage-assignment.yml b/.github/workflows/copilot-triage-assignment.yml
index 6a215cf82..695849173 100644
--- a/.github/workflows/copilot-triage-assignment.yml
+++ b/.github/workflows/copilot-triage-assignment.yml
@@ -11,6 +11,9 @@ permissions:
   issues: write
   pull-requests: write
 
+env:
+  COPILOT_USERNAMES: ${{ vars.COPILOT_USERNAMES }}
+
 jobs:
   assign-copilot:
     runs-on: ubuntu-latest