diff --git a/lib/ransack/search.rb b/lib/ransack/search.rb
index 3d88624..0560e10 100644
--- a/lib/ransack/search.rb
+++ b/lib/ransack/search.rb
@@ -72,7 +72,7 @@ module Ransack
       Nodes::Sort.new(@context).build(opts)
     end
 
-    def respond_to?(method_id)
+    def respond_to?(method_id, include_private=false)
       super or begin
         method_name = method_id.to_s
         writer = method_name.sub!(/\=$/, '')
@@ -118,4 +118,4 @@ module Ransack
     end
 
   end
-end
\ No newline at end of file
+end
diff --git a/spec/ransack/search_spec.rb b/spec/ransack/search_spec.rb
index 7a939fd..64c3ec0 100644
--- a/spec/ransack/search_spec.rb
+++ b/spec/ransack/search_spec.rb
@@ -240,5 +240,11 @@ module Ransack
       end
     end
 
+    describe '#respond_to' do
+      it 'is aware of second argument' do
+        Search.new(Person).respond_to?(:name_eq, true).should be
+      end
+    end
+
   end
 end