diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-pb92.c b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-pb92.c
index 4c5d3ab4a..5e680819e 100644
--- a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-pb92.c
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-pb92.c
@@ -99,6 +99,8 @@ static void __init pb92_init(void)
 					 ARRAY_SIZE(pb92_gpio_keys),
 					 pb92_gpio_keys);
 
+	ar71xx_add_device_usb();
+
 	pb9x_pci_init();
 }
 
diff --git a/target/linux/ar71xx/files-3.2/arch/mips/ath79/mach-pb92.c b/target/linux/ar71xx/files-3.2/arch/mips/ath79/mach-pb92.c
index 96b404c79..ff01f7286 100644
--- a/target/linux/ar71xx/files-3.2/arch/mips/ath79/mach-pb92.c
+++ b/target/linux/ar71xx/files-3.2/arch/mips/ath79/mach-pb92.c
@@ -96,6 +96,8 @@ static void __init pb92_init(void)
 					 ARRAY_SIZE(pb92_gpio_keys),
 					 pb92_gpio_keys);
 
+	ath79_register_usb();
+
 	ath79_register_pci();
 }