diff --git a/system/device_table_dev.txt b/system/device_table_dev.txt
index a93a2c8083..95079393e6 100644
--- a/system/device_table_dev.txt
+++ b/system/device_table_dev.txt
@@ -35,7 +35,7 @@
 /dev/ttySC	c	666	0	0	204	8	0	1	8
 /dev/ttyPSC	c	666	0	0	204	148	0	1	4
 /dev/ttyUL	c	666	0	0	204	187	0	1	4
-/dev/ttymxc	c	666	0	0	207	16	0	1	3
+/dev/ttymxc	c	666	0	0	207	16	0	1	4
 
 # Input stuff
 /dev/input		d	755	0	0	-	-	-	-	-