diff --git a/capybara.md b/capybara.md
index 8dd49736c..04b0737b3 100644
--- a/capybara.md
+++ b/capybara.md
@@ -122,11 +122,11 @@ In RSpec, you can use `page.should` assertions.
 expect(page).to have_no_button('Save')   # OK
 ```
 ```ruby
-expect(page).not_to have_button('Save')  # Bad
+expect(page).not_to have_button('Save')  # OK
+```
+```ruby
+!expect(page).to have_button('Save')  # Bad
 ```
-
-Use `should have_no_*` versions with RSpec matchers because
-`should_not have_*` doesn't wait for a timeout from the driver.
 
 ## RSpec