diff --git a/htdocs/install/mysql/tables/llx_c_type_resource.key.sql b/htdocs/install/mysql/tables/llx_c_type_resource.key.sql
index 5a76ff0cfa6..68f5b74a42a 100644
--- a/htdocs/install/mysql/tables/llx_c_type_resource.key.sql
+++ b/htdocs/install/mysql/tables/llx_c_type_resource.key.sql
@@ -17,5 +17,5 @@
 -- ========================================================================
 
 
-ALTER TABLE llx_c_type_contact ADD UNIQUE INDEX uk_c_type_contact_id (element, source, code);
+ALTER TABLE llx_c_type_resource ADD UNIQUE INDEX uk_c_type_resource_id (libelle, code);