diff --git a/Changes b/Changes
index 0afc29b..2e8b807 100644
--- a/Changes
+++ b/Changes
@@ -3,6 +3,7 @@ Revision history for libev, a high-performance and full-featured event loop.
 TODO: for next ABI/API change, consider moving EV__IOFDSSET into io->fd instead and provide a getter.
 TODO: document EV_TSTAMP_T
 
+	- libev did not compile on systems lacking clock_gettime.
 	- due to a logic bug, timerfd availability did not always translate
           into fewer wakeups - libev is now more aggressive in using
           longer sleeps, even when timerfd is not in use.