1 files changed, 4 insertions, 0 deletions
diff --git a/lib/rdoc/generator/html.rb b/lib/rdoc/generator/html.rb
index 60e0c175fe..3bce7b21aa 100644
--- a/lib/rdoc/generator/html.rb
+++ b/lib/rdoc/generator/html.rb
@@ -231,6 +231,10 @@ class RDoc::Generator::HTML
       open op_file, 'w' do |io|
         item.write_on io, file_list, class_list, method_list
       end
+
+      file_list.clear
+      class_list.clear
+      method_list.clear
     end
   end