diff --git a/backend/migrations/000070_distribution_chat_wallet_isolation.sql b/backend/migrations/000070_distribution_chat_wallet_isolation.sql
index be2d36e..a447d6c 100644
--- a/backend/migrations/000070_distribution_chat_wallet_isolation.sql
+++ b/backend/migrations/000070_distribution_chat_wallet_isolation.sql
@@ -38,6 +38,15 @@ PREPARE stmt FROM @sql;
 EXECUTE stmt;
 DEALLOCATE PREPARE stmt;
 
+SET @sql = IF(
+  (SELECT COUNT(*) FROM information_schema.STATISTICS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'wallet_accounts' AND INDEX_NAME = 'uk_wallet_accounts_user_site') = 1,
+  'ALTER TABLE wallet_accounts DROP KEY uk_wallet_accounts_user_site',
+  'SELECT 1'
+);
+PREPARE stmt FROM @sql;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
 SET @sql = IF(
   (SELECT COUNT(*) FROM information_schema.STATISTICS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = 'wallet_accounts' AND INDEX_NAME = 'uk_wallet_accounts_user_site') = 0,
   'ALTER TABLE wallet_accounts ADD UNIQUE KEY uk_wallet_accounts_user_site (user_id, distribution_site_id)',