diff --git a/src/codegen.inc.php b/src/codegen.inc.php
index 43efa59..31ade4d 100644
--- a/src/codegen.inc.php
+++ b/src/codegen.inc.php
@@ -128,6 +128,15 @@ function _add_twig_support(\Twig\Environment $twig)
       return cs_type($type);
     }
   ));
+  $twig->addFilter(new \Twig\TwigFilter('cs_simple_type', 
+    function($type) 
+    {
+      if($type instanceof \mtgArrType)
+        return cs_simple_type($type->getValue());
+      else
+        return cs_simple_type($type);
+    }
+  ));
   $twig->addFilter(new \Twig\TwigFilter('cs_type_prefix', 
     function($type) 
     {