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 5a76ff0cfa610ed35ac7fc53217f665205674f08..68f5b74a42ab9ae42a89377e2aee94de75dcf9ed 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);