Index: uspace/drv/uhci/Makefile
===================================================================
--- uspace/drv/uhci/Makefile	(revision 2972e219df3e7ee8a8f2f574b0405467ead119d4)
+++ uspace/drv/uhci/Makefile	(revision 92f924c8f47ac9cd03d5e435a2c244dee1a328a6)
@@ -38,5 +38,6 @@
 	root_hub/port_status.c \
 	root_hub/root_hub.c \
-	uhci.c
+	uhci.c \
+	utils/hc_synchronizer.c
 
 include $(USPACE_PREFIX)/Makefile.common