diff --git a/backend/services/mining-admin-service/prisma/schema.prisma b/backend/services/mining-admin-service/prisma/schema.prisma
index a0698011..96bf5048 100644
--- a/backend/services/mining-admin-service/prisma/schema.prisma
+++ b/backend/services/mining-admin-service/prisma/schema.prisma
@@ -957,7 +957,7 @@ model Notification {
   content           String               @db.Text
   type              NotificationType     @default(SYSTEM)
   priority          NotificationPriority @default(NORMAL)
-  targetType        TargetType           @default(ALL)
+  targetType        TargetType           @default(ALL) @map("target_type")
   imageUrl          String?              @map("image_url")
   linkUrl           String?              @map("link_url")
   isEnabled         Boolean              @default(true) @map("is_enabled")