diff --git a/lib/models/user.js b/lib/models/user.js
index aee4204..dd93bf7 100644
--- a/lib/models/user.js
+++ b/lib/models/user.js
@@ -105,8 +105,8 @@ module.exports = function (sequelize, DataTypes) {
                         break;
                     case "gitlab":
                         photo = profile.avatarUrl;
-                        if (bigger) photo.replace(/(\?s=)\d*$/i, '$1400');
-                        else photo.replace(/(\?s=)\d*$/i, '$196');
+                        if (bigger) photo = photo.replace(/(\?s=)\d*$/i, '$1400');
+                        else photo = photo.replace(/(\?s=)\d*$/i, '$196');
                         break;
                     case "dropbox":
                         //no image api provided, use gravatar
@@ -116,8 +116,8 @@ module.exports = function (sequelize, DataTypes) {
                         break;
                     case "google":
                         photo = profile.photos[0].value;
-                        if (bigger) photo.replace(/(\?sz=)\d*$/i, '$1400');
-                        else photo.replace(/(\?sz=)\d*$/i, '$196');
+                        if (bigger) photo = photo.replace(/(\?sz=)\d*$/i, '$1400');
+                        else photo = photo.replace(/(\?sz=)\d*$/i, '$196');
                         break;
                     case "ldap":
                         //no image api provided,