diff --git a/.github/workflows/eval.yml b/.github/workflows/eval.yml
index 53ad022a559f..a89f2e4d5f9b 100644
--- a/.github/workflows/eval.yml
+++ b/.github/workflows/eval.yml
@@ -378,6 +378,7 @@ jobs:
       - name: Check if the PR can be merged and checkout the merge commit
         uses: ./.github/actions/get-merge-commit
         with:
+          mergedSha: ${{ inputs.mergedSha }}
           merged-as-untrusted: true
 
       - name: Install Nix