diff --git a/Misc/ACKS b/Misc/ACKS
index 361cdf9..3cb3a29 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -130,6 +130,7 @@
 Brett Cannon
 Mike Carlton
 Terry Carroll
+Lorenzo M. Catucci
 Donn Cave
 Charles Cazabon
 Per Cederqvist
diff --git a/Misc/NEWS b/Misc/NEWS
index 19e653c..5cd6647 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -60,6 +60,9 @@
 Library
 -------
 
+- Issue #4471: Properly shutdown socket in IMAP.shutdown().  Patch by
+  Lorenzo M. Catucci.
+
 - Fix IMAP.login() to work properly.
 
 - Issue #9244: multiprocessing pool worker processes could terminate