diff --git a/src/shared/hosted-review-github.test.ts b/src/shared/hosted-review-github.test.ts
index 744424025..d01c9307b 100644
--- a/src/shared/hosted-review-github.test.ts
+++ b/src/shared/hosted-review-github.test.ts
@@ -80,6 +80,17 @@ describe('hostedReviewSummaryFromGitHubPRInfo', () => {
     expect(summary.checksStatus).toBe('failure')
   })
 
+  it('treats cancelled checks as failed in hosted review summaries', () => {
+    const summary = hostedReviewSummaryFromGitHubPRInfo({
+      pr: { ...pr, checksStatus: 'success' },
+      owner: 'acme',
+      repo: 'orca',
+      checks: [{ name: 'ci', status: 'completed', conclusion: 'cancelled', url: null }]
+    })
+
+    expect(summary.checksStatus).toBe('failure')
+  })
+
   it('distinguishes loaded empty comments from unknown comments', () => {
     expect(
       hostedReviewSummaryFromGitHubPRInfo({
diff --git a/src/shared/hosted-review-github.ts b/src/shared/hosted-review-github.ts
index 4ed77b715..b9f3f8c2f 100644
--- a/src/shared/hosted-review-github.ts
+++ b/src/shared/hosted-review-github.ts
@@ -36,7 +36,10 @@ function deriveChecksStatus(
     return prChecksStatus
   }
   const hasFailure = checks.some(
-    (check) => check.conclusion === 'failure' || check.conclusion === 'timed_out'
+    (check) =>
+      check.conclusion === 'failure' ||
+      check.conclusion === 'timed_out' ||
+      check.conclusion === 'cancelled'
   )
   if (hasFailure) {
     return 'failure'