diff --git a/pkg/handler/config.go b/pkg/handler/config.go
index 201ee26..c455713 100644
--- a/pkg/handler/config.go
+++ b/pkg/handler/config.go
@@ -98,7 +98,7 @@ func (config *Config) validate() error {
 	if config.CorsOrigin != "" && config.CorsOrigin != "*" && config.CorsOrigin != "null" {
 		_, err := url.ParseRequestURI(config.CorsOrigin)
 		if err != nil {
-			errors.New("tusd: CorsOrigin is not a valid URL")
+			return errors.New("tusd: CorsOrigin is not a valid URL")
 		}
 	}