diff --git a/CHANGES b/CHANGES
index d8ea05238..d56bbd17b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -32,6 +32,7 @@ Bugs fixed
   unserializable exception
 * #3315: Bibliography crashes on latex build with docclass 'memoir'
 * #3328: Could not refer rubric implicitly
+* #3329: emit warnings if po file is invalid and can't read it. Also writing mo too.
 
 
 Release 1.5.1 (released Dec 13, 2016)