diff --git a/spec/rubocop/capybara/description_extractor_spec.rb b/spec/rubocop/capybara/description_extractor_spec.rb
index 9fad89a..594558c 100644
--- a/spec/rubocop/capybara/description_extractor_spec.rb
+++ b/spec/rubocop/capybara/description_extractor_spec.rb
@@ -58,6 +58,7 @@ def stub_cop_const(name)
   end
 
   before do
+    YARD::Registry.clear
     stub_cop_const('Foo')
     stub_cop_const('Undocumented')
   end