diff --git a/bin/templates/configs_/nullable.json b/bin/templates/configs_/nullable.json
index 1e5062a..3f0a502 100644
--- a/bin/templates/configs_/nullable.json
+++ b/bin/templates/configs_/nullable.json
@@ -1,4 +1,4 @@
 {
-      "ExtID": true,
-      "CreatedAt": false
+      "ext_id": true,
+      "created_at": false
 }
diff --git a/internal/create_files/create_files.go b/internal/create_files/create_files.go
index d235140..77105fc 100644
--- a/internal/create_files/create_files.go
+++ b/internal/create_files/create_files.go
@@ -390,9 +390,15 @@ func FindCrudFunctionsURL() string {
 func FindTextDefaultValue(Column1 *types.Column) string {
 	var Otvet string
 
+	ColumnName := Column1.Name
+
+	//ищем в файле настроек nullable.json
+	is_nullable_config, has_is_nullable_config := types.MapNullableFileds[ColumnName]
+
+	//
 	sValue := ""
 	Type_go := Column1.TypeGo
-	if Column1.TableKey != "" {
+	if Column1.TableKey != "" && Column1.IsNullable == true && (is_nullable_config == true || has_is_nullable_config == false) {
 		sValue = "null"
 	} else {
 
diff --git a/internal/create_files/db_crud_tables/db_crud_tables.go b/internal/create_files/db_crud_tables/db_crud_tables.go
index 95ec0b3..b5830ee 100644
--- a/internal/create_files/db_crud_tables/db_crud_tables.go
+++ b/internal/create_files/db_crud_tables/db_crud_tables.go
@@ -344,6 +344,7 @@ func AddTextOmit(TextDB string, Table1 *types.Table) string {
 	TextOmit := ""
 	NullableCount := 0
 	for _, Column1 := range Table1.MapColumns {
+		ColumnName := Column1.Name
 		ColumnNameGo := Column1.NameGo
 		TypeGo := Column1.TypeGo
 
@@ -352,7 +353,7 @@ func AddTextOmit(TextDB string, Table1 *types.Table) string {
 		}
 
 		//ищем в файле настроек nullable.json
-		is_nullable_config, has_is_nullable_config := types.MapNullableFileds[ColumnNameGo]
+		is_nullable_config, has_is_nullable_config := types.MapNullableFileds[ColumnName]
 		if has_is_nullable_config == true && is_nullable_config == false {
 			continue
 		}