diff --git a/ext/v8/v8_obj.cpp b/ext/v8/v8_obj.cpp
index d26fe1f..729f4cb 100644
--- a/ext/v8/v8_obj.cpp
+++ b/ext/v8/v8_obj.cpp
@@ -72,11 +72,7 @@ namespace {
     HandleScope scope;
     Handle<Value> proto = rr_rb2v8(prototype);
     Local<Object> me = unwrap(self);
-    printf("self: %s", *String::AsciiValue(me->ToString()));
-    printf("proto: %s", *String::AsciiValue(proto->ToString()));
-    // unwrap(self)->SetPrototype();
-        // return rr_v82rb(unwrap(self)->SetPrototype(rr_rb2v8(prototype)));
-      return Qnil;
+    return rr_v82rb(unwrap(self)->SetPrototype(rr_rb2v8(prototype)));
   }
 }
 
diff --git a/spec/v8/to_spec.rb b/spec/v8/to_spec.rb
deleted file mode 100644
index 167f711..0000000
--- a/spec/v8/to_spec.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-require File.dirname(__FILE__) + '/../spec_helper'
-
-include V8
-
-describe V8::To do
-  
-  it "can convert into perl case" do
-    To.perl_case("foo").should == "foo"
-    To.perl_case("fooBar").should == "foo_bar"
-    To.perl_case("fooBarBaz").should == "foo_bar_baz"
-    To.perl_case("XMLDocument").should == "xml_document"
-  end
-  
-end
\ No newline at end of file