diff --git a/awesome/.config/awesome/rc.lua b/awesome/.config/awesome/rc.lua
index 71a2946..6853db2 100644
--- a/awesome/.config/awesome/rc.lua
+++ b/awesome/.config/awesome/rc.lua
@@ -507,7 +507,7 @@ client.connect_signal("manage", function (c, startup)
     if not startup then
         -- Set the windows at the slave,
         -- i.e. put it at the end of others instead of setting it master.
-       if not awful.rules.match(c, { class = "Emacs" }) then
+       if not awful.rules.match_any(c, { class = { "Emacs", "Dia" } }) then
           awful.client.setslave(c)
        end