diff --git a/src/components/inquiry/Detail.tsx b/src/components/inquiry/Detail.tsx
index d1894bd..0ee483f 100644
--- a/src/components/inquiry/Detail.tsx
+++ b/src/components/inquiry/Detail.tsx
@@ -39,7 +39,7 @@ export default function Detail() {
                 <tr>
                   <th>顧客名</th>
                   <td>
-                    {session?.userNm} {session?.builderNm ? `[${session?.builderNm}]` : ''}
+                    {inquiryDetail?.regNm ? inquiryDetail?.regNm : '-'}
                   </td>
                 </tr>
                 <tr>