diff --git a/hw/usb-uhci.c b/hw/usb-uhci.c
index e93db571669dc42bf2d276f79ba88ec5063500b8..f902d4615af54f7c5dd1c0a443a6a5fbbecd439e 100644
--- a/hw/usb-uhci.c
+++ b/hw/usb-uhci.c
@@ -153,6 +153,7 @@ static uint32_t uhci_ioport_readb(void *opaque, uint32_t addr)
     switch(addr) {
     case 0x0c:
         val = s->sof_timing;
+        break;
     default:
         val = 0xff;
         break;