diff --git a/.github/actions/runner-fallback/action.yml b/.github/actions/runner-fallback/action.yml
index cc66ecb..0a31714 100644
--- a/.github/actions/runner-fallback/action.yml
+++ b/.github/actions/runner-fallback/action.yml
@@ -23,6 +23,8 @@ runs:
       id: pick
       shell: bash
       env:
+        # token needs to have reop admin read permissions
+        # https://docs.github.com/en/rest/actions/self-hosted-runners?apiVersion=2022-11-28#list-self-hosted-runners-for-a-repository
         TOKEN: ${{ secrets.CUSTOM_GH_TOKEN }}
         PRIMARY: ${{ inputs.primary-runner }}
         FALLBACK: ${{ inputs.fallback-runner }}