diff --git a/Misc/ACKS b/Misc/ACKS
index 56d5765..1f098d4 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -393,6 +393,7 @@
 Greg Humphreys
 Eric Huss
 Jeremy Hylton
+Ludwig Hähne
 Gerhard Häring
 Fredrik Håård
 Catalin Iacob
diff --git a/Misc/NEWS b/Misc/NEWS
index 91ad192..baece2e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -94,6 +94,9 @@
 
 - Issue #15567: Fix NameError when running threading._test
 
+- Issue #15424: Add a __sizeof__ implementation for array objects.
+  Patch by Ludwig Hähne.
+
 - Issue #13052: Fix IDLE crashing when replace string in Search/Replace dialog
   ended with '\'. Patch by Roger Serwy.