diff --git a/CHANGES b/CHANGES
index 9c2bc36730..65ad9732ae 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,5 +1,6 @@
-2520.	[bug]		Update xml statistics version number to 2.0.
-			[RT #19080]
+2520.	[bug]		Update xml statistics version number to 2.0 as change
+			#2388 made the schema incompatible to the previous
+			version. [RT #19080]
 
 2519.	[bug]		dig/host with -4 or -6 didn't work if more than two
 			nameserver addresses of the excluded address family