diff --git a/shortcodes.rl b/shortcodes.rl
index 4cbfb23..204c126 100644
--- a/shortcodes.rl
+++ b/shortcodes.rl
@@ -101,6 +101,9 @@ struct shortcode {
   chunk name;
   chunk data;
   char matching;
+  chunk argnames[100];
+  chunk argvals[100];
+  int argcount;
 };
 typedef struct shortcode shortcode;