diff --git a/etc/tmux.conf b/etc/tmux.conf
index ad8eb16..543a7e1 100644
--- a/etc/tmux.conf
+++ b/etc/tmux.conf
@@ -62,8 +62,9 @@ bind a send-prefix
 # reload config
 bind r source-file "/etc/tmux.conf" \; display-message "config reloaded"
 
-# Shift+S to type into all panes at once
-bind-key S set-window-option synchronize-panes
+# S to type into all panes at once
+unbind-key s
+bind-key s set-window-option synchronize-panes
 
 # prefix then / for vertical split, - for horizontal
 unbind-key %