diff --git a/lib/blobject.rb b/lib/blobject.rb
index 65faba7..203efc8 100755
--- a/lib/blobject.rb
+++ b/lib/blobject.rb
@@ -94,7 +94,7 @@ def method_missing method, *params, &block
     super
   end
 
-  def respond_to? method
+  def respond_to? method, include_all=false
     super || self.__respond_to__?(method)
   end
 
diff --git a/spec/blobject_spec.rb b/spec/blobject_spec.rb
index f10cdd3..436d05e 100755
--- a/spec/blobject_spec.rb
+++ b/spec/blobject_spec.rb
@@ -126,6 +126,10 @@ def b.to_ary
     it 'returns false for :to_ary because that method is not allowed' do
       refute Blobject.new.respond_to? :to_ary
     end
+
+    it 'accepts the include_all optional parameter' do
+      assert b.respond_to?(:name, false)
+    end
   end
 
   describe 'to_hash' do