diff --git a/frontend/src/pages/ReportAlarmPage/ReportApproveResult/index.tsx b/frontend/src/pages/ReportAlarmPage/ReportApproveResult/index.tsx
index 3b491784c..7a41147b0 100644
--- a/frontend/src/pages/ReportAlarmPage/ReportApproveResult/index.tsx
+++ b/frontend/src/pages/ReportAlarmPage/ReportApproveResult/index.tsx
@@ -34,7 +34,7 @@ export default function ReportApproveResult() {
           <b>사유 </b>
           <S.List>
             {[...new Set(data.reasonList.map(each => REPORT_MESSAGE[each]))].map(reason => {
-              return <S.ListItem>{reason}</S.ListItem>;
+              return <S.ListItem key={reason}>{reason}</S.ListItem>;
             })}
           </S.List>
         </S.ListItem>