diff --git a/libertree/lang/ru/messages.po b/libertree/lang/ru/messages.po
new file mode 100644
index 000000000..52f10f007
--- /dev/null
+++ b/libertree/lang/ru/messages.po
@@ -0,0 +1,48 @@
+# ADDON libertree
+# Copyright (C)
+# This file is distributed under the same license as the Friendica libertree addon package.
+# 
+# 
+# Translators:
+# Alexander An <ravnina@gmail.com>, 2021
+msgid ""
+msgstr ""
+"Project-Id-Version: friendica\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2021-02-01 18:15+0100\n"
+"PO-Revision-Date: 2021-03-03 17:44+0000\n"
+"Last-Translator: Alexander An <ravnina@gmail.com>\n"
+"Language-Team: Russian (http://www.transifex.com/Friendica/friendica/language/ru/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: ru\n"
+"Plural-Forms: nplurals=4; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<12 || n%100>14) ? 1 : n%10==0 || (n%10>=5 && n%10<=9) || (n%100>=11 && n%100<=14)? 2 : 3);\n"
+
+#: libertree.php:37
+msgid "Post to libertree"
+msgstr "Отправлять в Libertree"
+
+#: libertree.php:71 libertree.php:75
+msgid "libertree Export"
+msgstr ""
+
+#: libertree.php:79
+msgid "Enable Libertree Post Addon"
+msgstr "Включить отправку в Libertree"
+
+#: libertree.php:84
+msgid "Libertree API token"
+msgstr ""
+
+#: libertree.php:89
+msgid "Libertree site URL"
+msgstr ""
+
+#: libertree.php:94
+msgid "Post to Libertree by default"
+msgstr "Отправлять записи в Libertree по-умолчанию"
+
+#: libertree.php:100
+msgid "Save Settings"
+msgstr ""
diff --git a/libertree/lang/ru/strings.php b/libertree/lang/ru/strings.php
index 9d1522a4a..ed912ba10 100644
--- a/libertree/lang/ru/strings.php
+++ b/libertree/lang/ru/strings.php
@@ -1,9 +1,11 @@
-<?php
-
-$a->strings["Post to libertree"] = "";
-$a->strings["libertree Post Settings"] = "";
-$a->strings["Enable Libertree Post Addon"] = "";
-$a->strings["Libertree API token"] = "";
-$a->strings["Libertree site URL"] = "";
-$a->strings["Post to Libertree by default"] = "";
-$a->strings["Submit"] = "Подтвердить";
+<?php
+
+if(! function_exists("string_plural_select_ru")) {
+function string_plural_select_ru($n){
+	$n = intval($n);
+	if ($n%10==1 && $n%100!=11) { return 0; } else if ($n%10>=2 && $n%10<=4 && ($n%100<12 || $n%100>14)) { return 1; } else if ($n%10==0 || ($n%10>=5 && $n%10<=9) || ($n%100>=11 && $n%100<=14)) { return 2; } else  { return 3; }
+}}
+;
+$a->strings["Post to libertree"] = "Отправлять в Libertree";
+$a->strings["Enable Libertree Post Addon"] = "Включить отправку в Libertree";
+$a->strings["Post to Libertree by default"] = "Отправлять записи в Libertree по-умолчанию";