diff --git a/ChangeLog b/ChangeLog
index b1cd87651d..c4329fc313 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -9337,4 +9337,8 @@
 	  RX flow control logic.  Modify the rxflowcontrol method to accept
 	  the number of bytes in the buffer and a boolean indication of which
 	  watermark was crossed (2014-12-27).
+	* sched/seamphore/sem_waitirq.c must be built when signals are disabled.
+	  That is because not handles not only the case of semaphore wait
+	  being awakened by a signal, but also the case with sem_timedwait.c
+	  when the semaphore wait is awakened by a timeout (2014-12-28).