diff --git a/src/opnsense/mvc/app/library/OPNsense/Firewall/DNatRule.php b/src/opnsense/mvc/app/library/OPNsense/Firewall/DNatRule.php
index 4af371556..544029da8 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Firewall/DNatRule.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Firewall/DNatRule.php
@@ -58,7 +58,7 @@ class DNatRule extends Rule
             'nat' => 'parseStaticText,nat ',
             'interface' => 'parseInterface',
             'ipprotocol' => 'parsePlain',
-            'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp},proto ',
+            'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp}|a/n:"a/n",proto ',
             'interface.from' => 'parseInterface, from (,:network)',
             'from' => 'parsePlainCurly,to ',
             'interface.to' => 'parseInterface, -> (,)',
diff --git a/src/opnsense/mvc/app/library/OPNsense/Firewall/FilterRule.php b/src/opnsense/mvc/app/library/OPNsense/Firewall/FilterRule.php
index 2cfe84c4b..aaa1268cb 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Firewall/FilterRule.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Firewall/FilterRule.php
@@ -46,7 +46,7 @@ class FilterRule extends Rule
         'gateway' => 'parseRoute',
         'reply' =>  'parsePlain',
         'ipprotocol' => 'parsePlain',
-        'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp},proto ',
+        'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp}|a/n:"a/n",proto ',
         'from' => 'parsePlainCurly,from ',
         'from_port' => 'parsePlainCurly, port ',
         'os' => 'parsePlain, os {","}',
diff --git a/src/opnsense/mvc/app/library/OPNsense/Firewall/ForwardRule.php b/src/opnsense/mvc/app/library/OPNsense/Firewall/ForwardRule.php
index 4166997fe..17819327e 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Firewall/ForwardRule.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Firewall/ForwardRule.php
@@ -42,7 +42,7 @@ class ForwardRule extends Rule
             'log' => 'parseBool,log ',
             'interface' => 'parseInterface',
             'ipprotocol' => 'parsePlain',
-            'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp},proto ',
+            'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp}|a/n:"a/n",proto ',
             'from' => 'parsePlainCurly,from ',
             'from_port' => 'parsePlainCurly, port ',
             'to' => 'parsePlainCurly,to ',
@@ -59,7 +59,7 @@ class ForwardRule extends Rule
             'nat' => 'parseStaticText,nat ',
             'interface' => 'parseInterface',
             'ipprotocol' => 'parsePlain',
-            'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp},proto ',
+            'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp}|a/n:"a/n",proto ',
             'interface.from' => 'parseInterface, from (,:network)',
             'target.to' => 'parsePlainCurly,to ',
             'localport' => 'parsePlainCurly,port ',
diff --git a/src/opnsense/mvc/app/library/OPNsense/Firewall/SNatRule.php b/src/opnsense/mvc/app/library/OPNsense/Firewall/SNatRule.php
index cf96f6b30..f924e989b 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Firewall/SNatRule.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Firewall/SNatRule.php
@@ -40,7 +40,7 @@ class SNatRule extends Rule
         'log' => 'parseBool,log',
         'interface' => 'parseInterface',
         'ipprotocol' => 'parsePlain',
-        'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp},proto ',
+        'protocol' => 'parseReplaceSimple,tcp/udp:{tcp udp}|a/n:"a/n",proto ',
         'from' => 'parsePlain,from ',
         'sourceport' => 'parsePlain, port ',
         'to' => 'parsePlain,to ',