diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e9714eac..6bd9f607c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ The format is loosely based on [Keep a Changelog](http://keepachangelog.com/en/1
 
 ## Unreleased
 
+#### Changed
+
+* Make setups for inaccessible internal members fail fast by throwing an exception (@stakx, #455)
+
 #### Fixed
 
 * Make `SetupAllProperties` work correctly for same-typed sibling properties (@stakx, #442)