diff --git a/CHANGELOG b/CHANGELOG
index 1778bf6017..d93ed8a38b 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,8 @@
 devel
 -----
 
+* added 'x-content-type-options: nosniff' to avoid MSIE bug
+
 * set default value for `--ssl.protocol` from TLSv1 to TLSv1.2.
 
 * AQL breaking change in cluster: