diff --git a/Shorewall/Perl/Shorewall/Rules.pm b/Shorewall/Perl/Shorewall/Rules.pm
index db7031e50..d3efb99d7 100644
--- a/Shorewall/Perl/Shorewall/Rules.pm
+++ b/Shorewall/Perl/Shorewall/Rules.pm
@@ -5376,6 +5376,8 @@ sub process_snat1( $$$$$$$$$$$$ ) {
     } else {
 	( $target , $params ) = get_target_param1( $action );
 
+	$pre_nat = ( $target =~ s/\+$//; )
+
 	$actiontype = $targets{$target};
 
 	fatal_error "Invalid ACTION ($action)" unless $actiontype & ( ACTION | INLINE );
diff --git a/Shorewall/manpages/shorewall-snat.xml b/Shorewall/manpages/shorewall-snat.xml
index 94edc136d..f6a29a446 100644
--- a/Shorewall/manpages/shorewall-snat.xml
+++ b/Shorewall/manpages/shorewall-snat.xml
@@ -145,7 +145,7 @@
 
             <varlistentry>
               <term><emphasis
-              role="bold"><replaceable>action</replaceable></emphasis>[(<replaceable>parameter</replaceable>,...)]</term>
+              role="bold"><replaceable>action</replaceable></emphasis>[+][(<replaceable>parameter</replaceable>,...)]</term>
 
               <listitem>
                 <para>where <replaceable>action</replaceable> is an action
diff --git a/Shorewall6/manpages/shorewall6-snat.xml b/Shorewall6/manpages/shorewall6-snat.xml
index c11592d31..e08f6563d 100644
--- a/Shorewall6/manpages/shorewall6-snat.xml
+++ b/Shorewall6/manpages/shorewall6-snat.xml
@@ -144,7 +144,7 @@
 
             <varlistentry>
               <term><emphasis
-              role="bold"><replaceable>action</replaceable></emphasis>[(<replaceable>parameter</replaceable>,...)]</term>
+              role="bold"><replaceable>action</replaceable></emphasis>[+][(<replaceable>parameter</replaceable>,...)]</term>
 
               <listitem>
                 <para>where <replaceable>action</replaceable> is an action