Index: uspace/lib/usb/include/usb/host/endpoint.h
===================================================================
--- uspace/lib/usb/include/usb/host/endpoint.h	(revision cd1cec3bc8deaa31b192d8430abb26ebf75ce6f3)
+++ uspace/lib/usb/include/usb/host/endpoint.h	(revision 4fd3faf06b8a4954818da61d7c31ecaba4839d5c)
@@ -53,5 +53,5 @@
 	fibril_mutex_t guard;
 	fibril_condvar_t avail;
-	bool active;
+	volatile bool active;
 	link_t same_device_eps;
 } endpoint_t;