diff.diff

diff --git a/vm/arguments.hpp b/vm/arguments.hpp
index 094bdb9..ea13d71 100644
--- a/vm/arguments.hpp
+++ b/vm/arguments.hpp
@@ -111,7 +111,13 @@ namespace rubinius {
     }
 
     void use_array(Array* ary) {
-      use_tuple(ary->tuple(), ary->size());
+      use_tuple(ary->tuple(), ary->size(), ary->start()->to_int());
+    }
+
+    void use_tuple(Tuple* tup, int size, uint32_t offset) {
+      total_ = size;
+      arguments_ = &(tup->field[offset]);
+      argument_container_ = tup;
     }
 
     void use_tuple(Tuple* tup, int size) {