diff --git a/lib/jekyll/page.rb b/lib/jekyll/page.rb
index fde45651..3760410b 100644
--- a/lib/jekyll/page.rb
+++ b/lib/jekyll/page.rb
@@ -168,7 +168,7 @@ module Jekyll
     end
 
     def write?
-      true
+      true.freeze
     end
   end
 end