diff --git a/.github/workflows/pr-cleanup.yaml b/.github/workflows/pr-cleanup.yaml
index c0fe3dfde..ed28e793e 100644
--- a/.github/workflows/pr-cleanup.yaml
+++ b/.github/workflows/pr-cleanup.yaml
@@ -22,7 +22,7 @@ jobs:
           gh cache list --repo="${{ github.repository }}" \
                         --limit=2000 \
                         --json='key,id,ref' \
-                        --jq='.[] | select(.ref == "refs/pull/${{ github.event.pull_request.number }}/merge")' \
+                        --jq='.[] | select(.ref == "refs/pull/${{ github.event.pull_request.number }}/merge") | .id' \
              | xargs --verbose --max-args=1 gh cache delete
 
   clean-up-hosted-datasets: