diff --git a/target/generic/target_busybox_skeleton/etc/securetty b/target/generic/target_busybox_skeleton/etc/securetty
index 0e7cf97cc5..b25f4a5a9c 100644
--- a/target/generic/target_busybox_skeleton/etc/securetty
+++ b/target/generic/target_busybox_skeleton/etc/securetty
@@ -30,3 +30,6 @@ ttyCPM0
 ttyCPM1
 ttyCPM2
 ttyCPM3
+ttymxc0
+ttymxc1
+ttymxc2