diff --git a/back/src/wos/wos.service.ts b/back/src/wos/wos.service.ts
index 09e82b3..9101985 100644
--- a/back/src/wos/wos.service.ts
+++ b/back/src/wos/wos.service.ts
@@ -181,8 +181,8 @@ export class WosService {
         result = { success: false, message: err.message || '오류 발생' };
       }
 
-      if (result.err_code === 40008) {
-        result = { success: true, message: ALREADY_MSG, err_code: 40008 };
+      if (result.err_code === 40008 || result.err_code === 40011) {
+        result = { success: true, message: ALREADY_MSG, err_code: result.err_code };
       }
 
       if (result.err_code === 40007) {
@@ -262,7 +262,7 @@ export class WosService {
         const result = await this.redeemOne(user.fid, code);
 
         const finalResult =
-          result.err_code === 40008
+          result.err_code === 40008 || result.err_code === 40011
             ? { success: true, message: ALREADY_MSG }
             : result;