diff --git a/CHANGES b/CHANGES
index a56059ca87..30baddeefe 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+5183.	[bug]		Reinitialize ECS data before reusing client
+			structures. [GL #881]
+
 5182.	[bug]		Fix a high-load race/crash in handling of
 			isc_socket_close() in resolver. [GL #834]