diff --git a/target/linux/ar71xx/config-2.6.26 b/target/linux/ar71xx/config-2.6.26
index 828c04446a..d6e3114630 100644
--- a/target/linux/ar71xx/config-2.6.26
+++ b/target/linux/ar71xx/config-2.6.26
@@ -234,6 +234,7 @@ CONFIG_TRAD_SIGNALS=y
 CONFIG_USB=m
 CONFIG_USB_EHCI_AR71XX=y
 CONFIG_USB_EHCI_HCD=m
+CONFIG_USB_EHCI_ROOT_HUB_TT=y
 CONFIG_USB_OHCI_AR71XX=y
 # CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
 # CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set