diff --git a/nixpkgs_merge_bot/commands/merge.py b/nixpkgs_merge_bot/commands/merge.py
index bef74a8..605b0a8 100644
--- a/nixpkgs_merge_bot/commands/merge.py
+++ b/nixpkgs_merge_bot/commands/merge.py
@@ -146,7 +146,7 @@ def merge_command(issue_comment: IssueComment, settings: Settings) -> HttpRespon
                 commenter_info = client.get_user_info(
                     issue_comment.commenter_login
                 ).json()
-                log.info(f"{issue_comment.issue_number }: Trying to merge pull request")
+                log.info(f"{issue_comment.issue_number }: Trying to merge pull request, with head_sha: {pull_request.head_sha}")
                 client.merge_pull_request(
                     issue_comment.repo_owner,
                     issue_comment.repo_name,