diff --git a/patches/patch20200710-3.0.0-rc2/versioning.sql b/patches/patch20200710-3.0.0-rc2/versioning.sql
index 9f298979b1bb5df904b6e163b9d2ad92f79c243a..ebf0cfb18a0e854328396fffcfdad36e88b3e206 100644
--- a/patches/patch20200710-3.0.0-rc2/versioning.sql
+++ b/patches/patch20200710-3.0.0-rc2/versioning.sql
@@ -315,6 +315,6 @@ CREATE TABLE archive_entities (
     FOREIGN KEY (`acl`) REFERENCES `entity_acl` (`id`)
 ) ENGINE=InnoDB;
 
-ALTER IGNORE TABLE collection_type ADD UNIQUE KEY `collection_type-d-e-p` (`domain_id`, `entity_id`, `property_id`);
+ALTER TABLE collection_type ADD UNIQUE KEY `collection_type-d-e-p` (`domain_id`, `entity_id`, `property_id`);
 
 INSERT INTO feature_config (_key, _value) VALUES ("ENTITY_VERSIONING", "ENABLED");