diff --git a/WeChatApplet/Services/Impl/TeacherService.cs b/WeChatApplet/Services/Impl/TeacherService.cs
index 9ef38c7..b19a1b4 100644
--- a/WeChatApplet/Services/Impl/TeacherService.cs
+++ b/WeChatApplet/Services/Impl/TeacherService.cs
@@ -224,7 +224,7 @@ namespace YD_WeChatApplet.Services
                     StudentNo = x.StudentNo,
                     StudentName = x.StudentName,
                     Sex = x.Sex,
-                    Photo = students.FirstOrDefault(x => x.StudentNo == x.StudentNo)?.Photo ?? "",
+                    Photo = students.FirstOrDefault(y => y.StudentNo == x.StudentNo)?.Photo ?? "",
                 }).ToList()
             };