diff --git a/plugin/Cache/install/install.sql b/plugin/Cache/install/install.sql
index 0ce1660f6dd6..b4d675bb78f4 100644
--- a/plugin/Cache/install/install.sql
+++ b/plugin/Cache/install/install.sql
@@ -20,6 +20,9 @@ CREATE TABLE IF NOT EXISTS `CachesInDB` (
 ENGINE = InnoDB;
 ALTER TABLE CachesInDB ADD FULLTEXT(name);
 
+ALTER TABLE CachesInDB 
+DROP INDEX `unique_cache_index`;
+
 ALTER TABLE CachesInDB 
 ADD UNIQUE `unique_cache_index`(`name`(250), `domain`(50), `ishttps`, `user_location`(50), `loggedType`);