diff --git a/vendor/ot_rcp.te b/vendor/ot_rcp.te
index 0da517a..b1f57a7 100644
--- a/vendor/ot_rcp.te
+++ b/vendor/ot_rcp.te
@@ -10,7 +10,7 @@
 allow hal_threadnetwork_default devpts:chr_file {open read write ioctl};
 allow ot_rcp hal_threadnetwork_default:fd use;
 allow ot_rcp hal_threadnetwork_default:fifo_file rw_file_perms;
-allow ot_rcp devpts:chr_file {read write};
+allow ot_rcp devpts:chr_file {read write ioctl};
 allow ot_rcp self:udp_socket create_socket_perms_no_ioctl;
 allow ot_rcp node:udp_socket node_bind;
 allow ot_rcp port:udp_socket name_bind;