diff --git a/src/model/db_model.rs b/src/model/db_model.rs
index f2d74bd..6eb7354 100644
--- a/src/model/db_model.rs
+++ b/src/model/db_model.rs
@@ -12,6 +12,7 @@ pub struct Category {
     level: i32,
     parent_category_id: i64,
     book_id: i64,
+    #[serde(skip_serializing)]
     is_delete: bool,
     create_at: chrono::NaiveDateTime,
     update_at: chrono::NaiveDateTime,
@@ -37,6 +38,7 @@ pub struct Tag {
     name: String,
     level: i32,
     parent_tag_id: i64,
+    #[serde(skip_serializing)]
     is_delete: bool,
     create_at: chrono::NaiveDateTime,
     update_at: chrono::NaiveDateTime,
@@ -59,6 +61,7 @@ pub struct Book {
     id: i64,
     uid: i64,
     name: String,
+    #[serde(skip_serializing)]
     is_delete: bool,
     create_at: chrono::NaiveDateTime,
     update_at: chrono::NaiveDateTime,
@@ -79,6 +82,7 @@ pub struct Account {
     uid: i64,
     name: String,
     account_type: i64,
+    #[serde(skip_serializing)]
     is_delete: bool,
     create_at: chrono::NaiveDateTime,
     update_at: chrono::NaiveDateTime,
@@ -102,6 +106,7 @@ pub struct Transaction {
     pub description: String,
     pub category_id: i64,
     pub time: chrono::DateTime<Utc>,
+    #[serde(skip_serializing)]
     is_delete: bool,
     create_at: chrono::NaiveDateTime,
     update_at: chrono::NaiveDateTime,
@@ -129,6 +134,7 @@ pub struct Amount {
     value: i64,
     expo: i64,
     currency: String,
+    #[serde(skip_serializing)]
     is_delete: bool,
     create_at: chrono::NaiveDateTime,
     update_at: chrono::NaiveDateTime,
@@ -152,6 +158,7 @@ pub struct User {
     pub username: String,
     pub password: String,
     pub mail: String,
+    #[serde(skip_serializing)]
     pub is_delete: bool,
 }