diff --git a/doc/APIchanges b/doc/APIchanges
index 3d35463d27..a7936c5677 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -12,6 +12,9 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
+  Add AVFormatContext.start_time_realtime field.
+
 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
   Add AVFilterPicRef.pos field.