diff --git a/openerp/addons/base/security/ir.model.access.csv b/openerp/addons/base/security/ir.model.access.csv
index 306995e1bb5..fc3ea8361bc 100644
--- a/openerp/addons/base/security/ir.model.access.csv
+++ b/openerp/addons/base/security/ir.model.access.csv
@@ -51,7 +51,6 @@
 "access_res_currency_rate_type_group_all","res_currency_rate_type group_all","model_res_currency_rate_type",,1,0,0,0
 "access_res_currency_group_system","res_currency group_system","model_res_currency","group_system",1,1,1,1
 "access_res_currency_rate_group_system","res_currency_rate group_system","model_res_currency_rate","group_system",1,1,1,1
-"access_res_currency_rate_type_group_system","res_currency_rate_type group_system","model_res_currency_rate_type","group_system",1,1,1,1
 "access_res_groups_group_erp_manager","res_groups group_erp_manager","model_res_groups","group_erp_manager",1,1,1,1
 "access_res_groups_group_user","res_groups group_user","model_res_groups",,1,0,0,0
 "access_res_lang_group_all","res_lang group_all","model_res_lang",,1,0,0,0