Index: uspace/lib/usb/include/usb/request.h
===================================================================
--- uspace/lib/usb/include/usb/request.h	(revision 09ab0a9afc9379f1604c0fd75cac2d9287ba022c)
+++ uspace/lib/usb/include/usb/request.h	(revision 5b3e74a352b290be0672837f3bf39299f94fe96d)
@@ -117,5 +117,5 @@
 } __attribute__((packed)) usb_device_request_setup_packet_t;
 
-static_assert(sizeof(usb_device_request_setup_packet_t) == USB_SETUP_PACKET_SIZE);
+static_assert(sizeof(usb_device_request_setup_packet_t) == USB_SETUP_PACKET_SIZE, "");
 
 #define GET_DEVICE_DESC(size) \