diff --git a/libf2c/ChangeLog b/libf2c/ChangeLog
index bcff7375749..b4e6cc7c0c5 100644
--- a/libf2c/ChangeLog
+++ b/libf2c/ChangeLog
@@ -1,3 +1,7 @@
+1998-10-23  Dave Love  <d.love@dl.ac.uk>
+
+	* f2cext.c: Include math.h.
+
 1998-10-19  Dave Love  <d.love@dl.ac.uk>
 
 	* configure: Regenerate.