diff --git a/Misc/NEWS b/Misc/NEWS
index 8f15724..4d9eaee 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -105,6 +105,8 @@
 Extension Modules
 -----------------
 
+- Bug #1653736: Complain about keyword arguments to time.isoformat.
+
 - operator.count() now raises an OverflowError when the count reaches sys.maxint.
 
 - Bug #1575169: operator.isSequenceType() now returns False for subclasses of dict.