diff --git a/source4/dsdb/common/rodc_helper.c b/source4/dsdb/common/rodc_helper.c
index 5ed60e0af43..a3cef870497 100644
--- a/source4/dsdb/common/rodc_helper.c
+++ b/source4/dsdb/common/rodc_helper.c
@@ -237,7 +237,7 @@ WERROR samdb_confirm_rodc_allowed_to_repl_to_sid_list(struct ldb_context *sam_ct
  * rather than relying on the caller providing those
  */
 WERROR samdb_confirm_rodc_allowed_to_repl_to(struct ldb_context *sam_ctx,
-					     struct dom_sid *rodc_machine_account_sid,
+					     const struct dom_sid *rodc_machine_account_sid,
 					     struct ldb_message *rodc_msg,
 					     struct ldb_message *obj_msg)
 {