diff --git a/target/linux/generic-2.6/config-2.6.23 b/target/linux/generic-2.6/config-2.6.23
index 288c355ae..af1dc9f7c 100644
--- a/target/linux/generic-2.6/config-2.6.23
+++ b/target/linux/generic-2.6/config-2.6.23
@@ -1567,6 +1567,7 @@ CONFIG_USB_SERIAL_NAVMAN=m
 CONFIG_USB_SERIAL_OMNINET=m
 CONFIG_USB_SERIAL_OPTION=m
 CONFIG_USB_SERIAL_PL2303=m
+CONFIG_USB_SERIAL_OTI6858=m
 CONFIG_USB_SERIAL_SAFE=m
 CONFIG_USB_SERIAL_SAFE_PADDED=y
 CONFIG_USB_SERIAL_SIERRAWIRELESS=m