diff --git a/lib/arel/nodes/in.rb b/lib/arel/nodes/in.rb
index 13163af11e..6ccf37a053 100644
--- a/lib/arel/nodes/in.rb
+++ b/lib/arel/nodes/in.rb
@@ -1,10 +1,6 @@
 module Arel
   module Nodes
     class In < Equality
-      def initialize left, right
-        raise if Arel::SelectManager === right
-        super
-      end
     end
   end
 end