diff --git a/Shorewall/changelog.txt b/Shorewall/changelog.txt
index 8b9d2d140..ff4815e62 100644
--- a/Shorewall/changelog.txt
+++ b/Shorewall/changelog.txt
@@ -101,3 +101,5 @@ Changes in 3.1.x.
      define_firewall().)
 
 43)  Add Simon's redhat prog files.
+
+44)  Add 'delete_nat' to compiled program.
diff --git a/Shorewall/compiler b/Shorewall/compiler
index f58c46d06..5f06d7984 100755
--- a/Shorewall/compiler
+++ b/Shorewall/compiler
@@ -8128,6 +8128,19 @@ stop_firewall() {
 	\$IPTABLES -A \$1 -m state --state ESTABLISHED,RELATED -j ACCEPT
     }
 
+    delete_nat() {
+	\$IPTABLES -t nat -F
+	\$IPTABLES -t nat -X
+
+	if [ -f /var/lib/shorewall/nat ]; then
+	    while read external interface; do
+		qt ip addr del $external dev $interface
+	    done < /var/lib/shorewall/nat
+
+	    rm -f {/var/lib/shorewall}/nat
+	fi
+    }
+
     case \$COMMAND in
 	stop|clear)
 	    ;;
diff --git a/Shorewall/releasenotes.txt b/Shorewall/releasenotes.txt
index 81db9274c..d31c23166 100644
--- a/Shorewall/releasenotes.txt
+++ b/Shorewall/releasenotes.txt
@@ -35,6 +35,9 @@ Problems Corrected in 3.1.9
 2)  If any extension script used 'set --' (like the 'Limit' standard action
     extension script) then 'shorewall restore' would fail.
 
+3)  An undefined function 'delete_nat' was previously called when a compiled
+    program was issued the 'stop' or 'clear' command.
+
 Other changes in 3.1.9
 
 1)  The 'redhat' distribution is now supported in the compile command's -d