diff --git a/entities/src/balance.rs b/entities/src/balance.rs
index 75423e6d..a888792e 100644
--- a/entities/src/balance.rs
+++ b/entities/src/balance.rs
@@ -3,7 +3,7 @@
 use sea_orm::entity::prelude::*;
 use serde::{Deserialize, Serialize};
 
-#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
+#[derive(Clone, Debug, Default, PartialEq, DeriveEntityModel, Eq, Serialize, Deserialize)]
 #[sea_orm(table_name = "balance")]
 pub struct Model {
     #[sea_orm(primary_key)]