diff --git a/bin/gstack-doctor-components.sh b/bin/gstack-doctor-components.sh
index 221e5c993..af0815ec9 100644
--- a/bin/gstack-doctor-components.sh
+++ b/bin/gstack-doctor-components.sh
@@ -306,6 +306,7 @@ gstack_result_anchor() {
     REVIEW_SCOPE_RANGE) printf '%s' 'review-scope-range' ;;
     RECEIPT_CARRY_REFUSED) printf '%s' 'receipt-carry-refused' ;;
     PROSE_LINT_FOUND) printf '%s' 'prose-lint-found' ;;
+    RECEIPT_CARRY_TREE_MISMATCH) printf '%s' 'receipt-carry-tree-mismatch' ;;
     RECEIPT_CARRY_PRODUCT_CHANGED) printf '%s' 'receipt-carry-product-changed' ;;
     DOCS_AUDIT_BLOCKED) printf '%s' 'docs-audit-blocked' ;;
     RECEIPT_PROSE_MISMATCH) printf '%s' 'receipt-prose-mismatch' ;;
diff --git a/test/ship-receipt-carry-rewrite.test.ts b/test/ship-receipt-carry-rewrite.test.ts
index 0c14f2551..41c038d1c 100644
--- a/test/ship-receipt-carry-rewrite.test.ts
+++ b/test/ship-receipt-carry-rewrite.test.ts
@@ -87,7 +87,7 @@ describe('carry across a rebase', () => {
     repo.git('checkout', '-q', '-B', 'feature', 'origin/main');
     repo.git('checkout', reviewed, '--', '.');
     repo.git('commit', '-qam', 'same tree, new base');
-    expect(repo.git('rev-parse', 'HEAD^{tree}')).toBe(receiptIn(body).head_tree);
+    expect(repo.git('rev-parse', 'HEAD^{tree}')).toBe(receiptIn(body).head_tree ?? '');
     const out = carry(repo, body);
     expect(out.status).toBe(EXIT.refused);
     expect(out.out).toContain('CARRY: refused (RECEIPT_CARRY_PRODUCT_CHANGED)');