diff --git a/src/lib/github/summarize-github-pull-request.ts b/src/lib/github/summarize-github-pull-request.ts
index 0982a0f0..65ad507b 100644
--- a/src/lib/github/summarize-github-pull-request.ts
+++ b/src/lib/github/summarize-github-pull-request.ts
@@ -50,7 +50,6 @@ export async function summarizeGithubPullRequest(
         event: 'summarize_pr:failed_fetch_diff',
         pull_request: getPullRequestLogData(pullRequest),
         issue,
-        diff,
         error,
       })