diff --git a/History.markdown b/History.markdown
index e6952603..8c99c037 100644
--- a/History.markdown
+++ b/History.markdown
@@ -26,6 +26,7 @@
   * (Minor) Grammar & `_config.yml` filename fixes (#2911)
   * Added `mathml.rb` to the list of third-party plugins. (#2937)
   * Add `--force_polling` to the list of configuration options (#2943)
+  * Escape unicode characters in site CSS (#2906)
 
 ## 2.4.0 / 2014-09-09