diff --git a/lib/treehugger/tree.js b/lib/treehugger/tree.js
index f271335..be6274a 100644
--- a/lib/treehugger/tree.js
+++ b/lib/treehugger/tree.js
@@ -596,7 +596,7 @@ function parseCached (s) {
         return null;
     }
     if(s.length > 200) {
-        return parse();
+        return parse(s);
     }
     return parseCache[s] || (parseCache[s] = parse(s));
 }