diff --git a/.config/sway/config b/.config/sway/config
index 12c1979..4195fe1 100644
--- a/.config/sway/config
+++ b/.config/sway/config
@@ -307,6 +307,7 @@ bindsym $mod+m exec thunderbird
 #===============================#
 
 assign [app_id="firefox"] workspace $ws2
+assign [app_id="thunderbird"] workspace $ws3
 assign [class="thunderbird-default"] workspace $ws3
 for_window [class="TelegramDesktop"] resize set width 30ppt
 assign [class="TelegramDesktop"] workspace $ws3