diff --git a/database/migrations/data/20230428_1826_community_main_currency.php b/database/migrations/data/20230428_1826_community_main_currency.php
new file mode 100644
index 0000000..ce679da
--- /dev/null
+++ b/database/migrations/data/20230428_1826_community_main_currency.php
@@ -0,0 +1,19 @@
+<?php
+
+use RVR\PersistentData\Model\Community;
+use RVR\PersistentData\Model\Currency;
+use SokoWeb\Database\Query\Select;
+
+$select = new Select(Container::$dbConnection);
+$communities = Container::$persistentDataManager->selectMultipleFromDb($select, Community::class);
+
+foreach ($communities as $community) {
+    $mainCurrency = new Currency();
+    $mainCurrency->setCommunity($community);
+    $mainCurrency->setCode($community->getCurrency());
+    $mainCurrency->setRoundDigits(0);
+    Container::$persistentDataManager->saveToDb($mainCurrency);
+
+    $community->setMainCurrency($mainCurrency);
+    Container::$persistentDataManager->saveToDb($community);
+}
diff --git a/database/migrations/structure/20230428_1826_community_main_currency.sql b/database/migrations/structure/20230428_1826_community_main_currency.sql
new file mode 100644
index 0000000..a4b5044
--- /dev/null
+++ b/database/migrations/structure/20230428_1826_community_main_currency.sql
@@ -0,0 +1,4 @@
+ALTER TABLE `communities`
+ADD `main_currency_id` int(10) unsigned DEFAULT NULL,
+ADD KEY `main_currency_id` (`main_currency_id`),
+ADD CONSTRAINT `communities_main_currency_id` FOREIGN KEY (`main_currency_id`) REFERENCES `currencies` (`id`);