diff --git a/app/views/main/_announcement.html.haml b/app/views/main/_announcement.html.haml
--- a/app/views/main/_announcement.html.haml
+++ b/app/views/main/_announcement.html.haml
@@ -1,4 +1,4 @@
 .announcement
   = markdown(announcement.body)
   .pub-info
-    %p= "#{announcement.author} #{announcement.created_at}"
+    %p= "#{announcement.author}, #{announcement.created_at}"