diff --git a/package/comgt/files/3g.sh b/package/comgt/files/3g.sh
index 125bec3d69..5274821a1b 100644
--- a/package/comgt/files/3g.sh
+++ b/package/comgt/files/3g.sh
@@ -13,7 +13,7 @@ scan_3g() {
 
 	# try to figure out the device if it's invalid
 	[ -n "$device" -a -e "$device" ] || {
-		for device in /dev/tts/2 /dev/usb/tts/0 /dev/noz0; do
+		for device in /dev/ttyUSB2 /dev/tts/2 /dev/usb/tts/0 /dev/noz0; do
 			[ -e "$device" ] && {
 				config_set "$1" device "$device"
 				break