diff --git a/modules/setting/setting.go b/modules/setting/setting.go
index 6a149e81b..581d4137a 100644
--- a/modules/setting/setting.go
+++ b/modules/setting/setting.go
@@ -522,6 +522,8 @@ func NewContext() {
 		GravatarSource = "http://gravatar.duoshuo.com/avatar/"
 	case "gravatar":
 		GravatarSource = "https://secure.gravatar.com/avatar/"
+	case "libravatar":
+		GravatarSource = "https://seccdn.libravatar.org/avatar/"
 	default:
 		GravatarSource = source
 	}