diff --git a/default/mako/core.ini b/default/mako/core.ini
index 78c24452..d8837b92 100644
--- a/default/mako/core.ini
+++ b/default/mako/core.ini
@@ -1,4 +1,5 @@
 anchor=top-right
+group-by=app-name,summary,body
 default-timeout=5000
 width=420
 outer-margin=20