diff --git a/scripts/chat.tmux.conf b/scripts/chat.tmux.conf
index 9d4b238..4be7faa 100644
--- a/scripts/chat.tmux.conf
+++ b/scripts/chat.tmux.conf
@@ -20,6 +20,9 @@ set-option -g	-- automatic-rename	off
 set-option -g	-- allow-rename	off
 set-option -g	-- set-titles	off
 set-option -g	-- renumber-windows	on
+# for the F1 binding, make hotkeys match window numbers
+set-option -g	-- base-index	on
+
 
 # clients exit on network errors, restart them automatically
 # (use `kill-pane'/`C-b x' to destroy windows)