diff --git a/test/collection_test.rb b/test/collection_test.rb
index cefd32a..a2d211e 100644
--- a/test/collection_test.rb
+++ b/test/collection_test.rb
@@ -608,7 +608,10 @@ class TestCollection < Test::Unit::TestCase
         
         m = Code.new("function() { emit(this.user_id, 1); }")
         r = Code.new("function(k,vals) { return 1; }")
-        res = @@test.map_reduce(m, r, :out => {:replace => "foo", :db => 'somedb'})
+        oh = BSON::OrderedHash.new
+        oh[:replace] = 'foo'
+        oh[:db] = 'somedb'
+        res = @@test.map_reduce(m, r, :out => (oh))
         assert res["result"]
         assert res["counts"]
         assert res["timeMillis"]