diff --git a/sys/sys/timetc.h b/sys/sys/timetc.h
--- a/sys/sys/timetc.h
+++ b/sys/sys/timetc.h
@@ -49,7 +49,7 @@
 		 * This function is optional.  It will be called whenever the
 		 * timecounter is rewound, and is intended to check for PPS
 		 * events.  Normal hardware does not need it but timecounters
-		 * which latch PPS in hardware (like sys/pci/xrpu.c) do.
+		 * which latch PPS in hardware do.
 		 */
 	u_int 			tc_counter_mask;
 		/* This mask should mask off any unimplemented bits. */