diff --git a/protocol/pjrc/usb.c b/protocol/pjrc/usb.c
index 2b267d48..1e6ba871 100644
--- a/protocol/pjrc/usb.c
+++ b/protocol/pjrc/usb.c
@@ -629,6 +629,7 @@ uint8_t usb_configured(void)
 void usb_remote_wakeup(void)
 {
     UDCON |= (1<<RMWKUP);
+    while (UDCON & (1<<RMWKUP));
 }