diff --git a/ChangeLog b/ChangeLog
index 8261085..d4de303 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2016-11-15  Tatsuya Kinoshita  <tats@debian.org>
 
+	* table.c: Prevent deref null pointer in renderCoTable().
+	Bug-Debian: https://github.com/tats/w3m/issues/20#issuecomment-260649537
+
 	* file.c, proto.h, table.c:
 	Prevent infinite recursion with nested table and textarea.
 	Bug-Debian: https://github.com/tats/w3m/issues/20#issuecomment-260590257