diff --git a/lib/capybara/spec/session/current_scope_spec.rb b/lib/capybara/spec/session/current_scope_spec.rb
index ee63e0cf..096cd6ca 100644
--- a/lib/capybara/spec/session/current_scope_spec.rb
+++ b/lib/capybara/spec/session/current_scope_spec.rb
@@ -7,7 +7,7 @@ Capybara::SpecHelper.spec '#current_scope' do
 
   context 'when not in a #within block' do
     it 'should return the document' do
-      expect(@session.current_scope).to be_kind_of Capybara::Node::Document
+      expect(@session.current_scope).to be_a Capybara::Node::Document
     end
   end