diff --git a/database/database.go b/database/database.go
index 422a6de..8dd1c6c 100644
--- a/database/database.go
+++ b/database/database.go
@@ -45,7 +45,6 @@ func (db *Database) AddTable(table *Table) error {
 	if db.ExistedTable(name) {
 		return fmt.Errorf("table %s already existed", name)
 	}
-	table.dbClient = db.dbClient
 	db.pendingTables[name] = table
 	return nil
 }
diff --git a/database/database_test.go b/database/database_test.go
index 9d760fd..a2f259a 100644
--- a/database/database_test.go
+++ b/database/database_test.go
@@ -7,7 +7,7 @@ func TestNewDatabaseAndAddNewTable(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	table, err := NewTableBuilder("test_table").AddFieldInt("test_field_int").AddFieldVarchar("test_field_string").Submit()
+	table, err := NewTableBuilder("test_table", db.dbClient).AddFieldInt("test_field_int").AddFieldVarchar("test_field_string").Submit()
 	if err != nil {
 		t.Fatal(err)
 	}
diff --git a/database/table.go b/database/table.go
index 32840ed..9751e1b 100644
--- a/database/table.go
+++ b/database/table.go
@@ -14,10 +14,11 @@ type Table struct {
 	Fields    map[string]*Field
 }
 
-func NewTable(name string) *Table {
+func NewTable(name string, dbClient *gorm.DB) *Table {
 	return &Table{
-		name:   name,
-		Fields: map[string]*Field{},
+		name:     name,
+		Fields:   map[string]*Field{},
+		dbClient: dbClient,
 	}
 }
 
@@ -90,9 +91,9 @@ type TableBuilder struct {
 	table *Table
 }
 
-func NewTableBuilder(name string) *TableBuilder {
+func NewTableBuilder(name string, dbClient *gorm.DB) *TableBuilder {
 	return &TableBuilder{
-		table: NewTable(name),
+		table: NewTable(name, dbClient),
 	}
 }
 
diff --git a/database/table_test.go b/database/table_test.go
index c9fc3f3..32e6d4e 100644
--- a/database/table_test.go
+++ b/database/table_test.go
@@ -3,7 +3,7 @@ package database
 import "testing"
 
 func TestNewTable(t *testing.T) {
-	table, err := NewTableBuilder("test_table_name").AddFieldInt("test_field_int").Submit()
+	table, err := NewTableBuilder("test_table_name", nil).AddFieldInt("test_field_int").Submit()
 	if err != nil {
 		t.Fatal(err)
 	}