diff --git a/src/libs/actions/IOU.ts b/src/libs/actions/IOU.ts
index 55c6b17ee6d2..c75c59e7f262 100644
--- a/src/libs/actions/IOU.ts
+++ b/src/libs/actions/IOU.ts
@@ -8312,7 +8312,7 @@ function resolveDuplicates(params: TransactionMergeParams) {
         });
     });
 
-    const transactionThreadReportID = getIOUActionForTransactions([params.transactionID], params.reportID)?.[0]?.childReportID;
+    const transactionThreadReportID = getIOUActionForTransactions([params.transactionID], params.reportID).at(0)?.childReportID;
     const optimisticReportAction = ReportUtils.buildOptimisticDismissedViolationReportAction({
         reason: 'manual',
         violationName: CONST.VIOLATIONS.DUPLICATED_TRANSACTION,