diff --git a/src/config.go b/src/config.go
index 7edfc9c..e19efd8 100644
--- a/src/config.go
+++ b/src/config.go
@@ -90,8 +90,9 @@ func GetAndValidateConfig() (*Config, error) {
 	config.DbContextTemplate = joinIfRelative(config.PathBase, config.DbContextTemplate)
 	config.ModelTemplate = joinIfRelative(config.PathBase, config.ModelTemplate)
 	config.OutputFolder = joinIfRelative(config.PathBase, config.OutputFolder)
+	config.GeneratedFileCase = strings.ToLower(config.GeneratedFileCase)
 
-	if !contains(ValidCaseNormalized, strings.ToLower(config.GeneratedFileCase)) {
+	if !contains(ValidCaseNormalized, config.GeneratedFileCase) {
 		return nil, fmt.Errorf(" '%s' is not valid case (maybe GeneratedFileCase is missing)", config.GeneratedFileCase)
 	}
 
diff --git a/src/generator.go b/src/generator.go
index 2dff473..79d45e5 100644
--- a/src/generator.go
+++ b/src/generator.go
@@ -291,7 +291,7 @@ func generateFileHashes(outputFolder string) (*map[string]string, error) {
 }
 
 func changeCase(str string, desiredCase string) string {
-	switch strings.ToLower(desiredCase) {
+	switch desiredCase {
 	case "pascalcase":
 		return strcase.UpperCamelCase(str)
 	case "camelcase":