diff --git a/actionview/lib/action_view/helpers/tag_helper.rb b/actionview/lib/action_view/helpers/tag_helper.rb
index b203857..f09595d 100644
--- a/actionview/lib/action_view/helpers/tag_helper.rb
+++ b/actionview/lib/action_view/helpers/tag_helper.rb
@@ -181,7 +181,7 @@ def tag_option(key, value, escape)
           else
             value = escape ? ERB::Util.unwrapped_html_escape(value) : value
           end
-          %(#{key}="#{value}")
+          %(#{key}="#{value.gsub(/"/, '"'.freeze)}")
         end
     end
   end