diff --git a/examples/convert.ce b/examples/convert.ce
index 75d73de..7975ebd 100644
--- a/examples/convert.ce
+++ b/examples/convert.ce
@@ -31,7 +31,7 @@ var input_file = args[0]
 var output_file = args[1]
 
 function ext_lower(path) {
-  var e = array(path, '.').pop()
+  var e = array(path, '.')[]
   if (!e) return null
   return lower(e)
 }