diff --git a/roles/tmux/files/tmux.conf b/roles/tmux/files/tmux.conf
index 55d12f1..f0de50a 100644
--- a/roles/tmux/files/tmux.conf
+++ b/roles/tmux/files/tmux.conf
@@ -2,7 +2,8 @@
 # Key bindings
 #
 unbind C-b
-set -g prefix C-a
+set -g prefix C-space
+bind-key C-space send-prefix
 
 # Open new windows/panes with the path in current pane
 bind    c       new-window      -c '#{pane_current_path}'