diff --git a/pkg/codegen/modelgenerate/generate_model.go b/pkg/codegen/modelgenerate/generate_model.go
index bf0e53d..63f57dd 100644
--- a/pkg/codegen/modelgenerate/generate_model.go
+++ b/pkg/codegen/modelgenerate/generate_model.go
@@ -18,9 +18,8 @@ import (
 // ---------------
 
 var (
-	dbRecv    = &ast.FieldList{List: []*ast.Field{{Names: []*ast.Ident{ast.NewIdent("db")}, Type: ast.NewIdent("DB")}}}
-	dbDB      = &ast.SelectorExpr{X: ast.NewIdent("db"), Sel: ast.NewIdent("DB")}
-	fmtErrorf = &ast.SelectorExpr{X: ast.NewIdent("fmt"), Sel: ast.NewIdent("Errorf")}
+	dbRecv = &ast.FieldList{List: []*ast.Field{{Names: []*ast.Ident{ast.NewIdent("db")}, Type: ast.NewIdent("DB")}}}
+	dbDB   = &ast.SelectorExpr{X: ast.NewIdent("db"), Sel: ast.NewIdent("DB")}
 )
 
 func SQLFieldsConstIdent(tbl schema.Table) *ast.Ident {