diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
index 002363c..9af819d 100644
--- a/.idea/inspectionProfiles/Project_Default.xml
+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -7,7 +7,7 @@
       </Languages>
     </inspection_tool>
     <inspection_tool class="ExtractMethodRecommender" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="minLength" value="923" />
+      <option name="minLength" value="1089" />
     </inspection_tool>
   </profile>
 </component>
\ No newline at end of file
diff --git a/src/main/java/com/filesystem/controller/AuthController.java b/src/main/java/com/filesystem/controller/AuthController.java
index c8cce11..ca22cb7 100644
--- a/src/main/java/com/filesystem/controller/AuthController.java
+++ b/src/main/java/com/filesystem/controller/AuthController.java
@@ -77,7 +77,7 @@ public class AuthController {
 
         // 获取客户端 IP
         String clientIp = getClientIp(httpRequest);
-        User user = userService.createUser(username, password, nickname != null ? nickname : username, clientIp);
+        User user = userService.createUser(username, password, nickname, clientIp);
         return ResponseEntity.ok(Map.of("message", "注册成功", "data", Map.of("id", user.getId())));
     }