diff --git a/linux/scripts/entrypoint.sh b/linux/scripts/entrypoint.sh
index 9f0f6ac..e6f05b9 100644
--- a/linux/scripts/entrypoint.sh
+++ b/linux/scripts/entrypoint.sh
@@ -67,7 +67,7 @@ cleanup() {
     echo "Removing runner..."
     # token is only valid for 1h, so it needs to be re-queried
     # https://github.com/actions/runner/discussions/1799#discussioncomment-2747605
-    REG_TOKEN=$(curl --fail-with-body -X POST -H "Authorization: token ${TOKEN}" -H "Accept: application/vnd.github+json" "$REQ_TOKEN_URL" | jq .token --raw-output)
+    REG_TOKEN=$(curl --fail-with-body -X POST -H "Authorization: token ${TOKEN}" -H "Accept: application/vnd.github+json" "${REQ_TOKEN_URL}" | jq .token --raw-output)
     ./config.sh remove --token "${REG_TOKEN}"
 }