diff --git a/target/linux/ppc40x/config-default b/target/linux/ppc40x/config-default
index c2410f32c..487a56754 100644
--- a/target/linux/ppc40x/config-default
+++ b/target/linux/ppc40x/config-default
@@ -178,6 +178,7 @@ CONFIG_SWIOTLB=y
 CONFIG_TASK_SIZE=0xc0000000
 # CONFIG_TREE_PREEMPT_RCU is not set
 CONFIG_TREE_RCU=y
+CONFIG_USB_SUPPORT=y
 # CONFIG_WALNUT is not set
 CONFIG_WORD_SIZE=32
 # CONFIG_XILINX_SYSACE is not set