diff --git a/api/http/handler/settings/settings_update.go b/api/http/handler/settings/settings_update.go
index 2b9ceb5c3..eff0eb93b 100644
--- a/api/http/handler/settings/settings_update.go
+++ b/api/http/handler/settings/settings_update.go
@@ -96,8 +96,10 @@ func (payload *settingsUpdatePayload) Validate(r *http.Request) error {
 		}
 	}
 
-	if payload.OAuthSettings.AuthStyle < oauth2.AuthStyleAutoDetect || payload.OAuthSettings.AuthStyle > oauth2.AuthStyleInHeader {
-		return errors.New("Invalid OAuth AuthStyle")
+	if payload.OAuthSettings != nil {
+		if payload.OAuthSettings.AuthStyle < oauth2.AuthStyleAutoDetect || payload.OAuthSettings.AuthStyle > oauth2.AuthStyleInHeader {
+			return errors.New("Invalid OAuth AuthStyle")
+		}
 	}
 	return nil
 }