diff --git a/ChangeLog b/ChangeLog
index 18a95a58e..fc4d68013 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-05-16  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/bus/usb/usbhub.c (attach_root_port): Wait 10ms
+	after enabling port.
+
 2011-05-16  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Skip incorrect USB devices.
diff --git a/grub-core/bus/usb/usbhub.c b/grub-core/bus/usb/usbhub.c
index 82bb2da1c..fff94a3fc 100644
--- a/grub-core/bus/usb/usbhub.c
+++ b/grub-core/bus/usb/usbhub.c
@@ -215,6 +215,8 @@ attach_root_port (struct grub_usb_hub *hub, int portno,
     return;
   hub->controller->dev->pending_reset = grub_get_time_ms () + 5000;
 
+  grub_millisleep (10);
+
   /* Enable the port and create a device.  */
   dev = grub_usb_hub_add_dev (hub->controller, speed);
   hub->controller->dev->pending_reset = 0;