diff --git a/server/auth/gitlab/gitlab.go b/server/auth/gitlab/gitlab.go
index ec735c529cadb2535562da362b8029f686297817..f76b2e8d75044265371cd2686d9c0202c57c7558 100644
--- a/server/auth/gitlab/gitlab.go
+++ b/server/auth/gitlab/gitlab.go
@@ -26,7 +26,7 @@ type Config struct {
 }
 
 // New creates a new Gitlab provider from a configuration.
-func New(c *config.Auth) (auth.Provider, error) {
+func New(c *config.Auth) (*Config, error) {
 	uw := make(map[string]bool)
 	for _, u := range c.UsersWhitelist {
 		uw[u] = true