diff --git a/src/components/Modal/UploadPreviewModal.ts b/src/components/Modal/UploadPreviewModal.ts
index 4c9fe56..88c64f5 100644
--- a/src/components/Modal/UploadPreviewModal.ts
+++ b/src/components/Modal/UploadPreviewModal.ts
@@ -198,15 +198,16 @@ async function confirmUpload() {
       const data = parsedData[tab];
       let endpoint = '';
 
-      if (tab === '개인PC') endpoint = '/api/pc/batch';
-      else if (tab === '서버') endpoint = '/api/server/batch';
-      else if (tab === '스토리지') endpoint = '/api/storage/batch';
-      else if (tab === '전산비품') endpoint = '/api/equip/batch';
-      else if (tab === '모바일기기') endpoint = '/api/mobile/batch';
-      else if (tab === '구독SW') endpoint = '/api/sw/sub/batch';
-      else if (tab === '영구SW') endpoint = '/api/sw/perm/batch';
-      else if (tab === '클라우드') endpoint = '/api/sw/cloud/batch';
-      else if (tab === '도메인') endpoint = '/api/ops/domain/batch';
+      const API_BASE = `http://${location.hostname}:3000`;
+      if (tab === '개인PC') endpoint = `${API_BASE}/api/pc/batch`;
+      else if (tab === '서버') endpoint = `${API_BASE}/api/server/batch`;
+      else if (tab === '스토리지') endpoint = `${API_BASE}/api/storage/batch`;
+      else if (tab === '전산비품') endpoint = `${API_BASE}/api/equip/batch`;
+      else if (tab === '모바일기기') endpoint = `${API_BASE}/api/mobile/batch`;
+      else if (tab === '구독SW') endpoint = `${API_BASE}/api/sw/sub/batch`;
+      else if (tab === '영구SW') endpoint = `${API_BASE}/api/sw/perm/batch`;
+      else if (tab === '클라우드') endpoint = `${API_BASE}/api/cloud/batch`;
+      else if (tab === '도메인') endpoint = `${API_BASE}/api/ops/domain/batch`;
 
       if (endpoint) {
         const response = await fetch(endpoint, {