diff --git a/source/_posts/2019-09-13-live-blogging-symfonylive-london.md b/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
index 18dec3c5..cacd9a16 100644
--- a/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
+++ b/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
@@ -31,3 +31,4 @@ Building flexible high-level abstractions on top of low-level ones
     - Zurb Foundation for Emails CSS stylesheet
     - Twig `cssinliner-extra` package (Twig 1.12+)
     - Optimised Twig layouts
+* `SystemEmail` class extends template email