diff --git a/Shorewall/changelog.txt b/Shorewall/changelog.txt
index f72126a6f..7203c62fd 100644
--- a/Shorewall/changelog.txt
+++ b/Shorewall/changelog.txt
@@ -4,6 +4,8 @@ Changes in Shorewall 4.4.5
 
 2)  Fix handling of interfaces with the 'bridge' option.
 
+3)  Generate error for port number 0
+
 Changes in Shorewall 4.4.4
 
 1)  Change STARTUP_LOG and LOG_VERBOSITY in default shorewall6.conf.
diff --git a/Shorewall/releasenotes.txt b/Shorewall/releasenotes.txt
index d618d9fb4..4c418c735 100644
--- a/Shorewall/releasenotes.txt
+++ b/Shorewall/releasenotes.txt
@@ -187,6 +187,10 @@ Shorewall 4.4.5
     Undefined subroutine &Shorewall::Rules::match_source_interface called 
     at /usr/share/shorewall/Shorewall/Rules.pm line 2319.
 
+3)  The compiler now flags port number 0 as an error. Previously, port
+    0 was allowed with the result that invalid iptables-restore input
+    could be generated.
+
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