diff --git a/nix/home/programs/tmux/tmux.conf b/nix/home/programs/tmux/tmux.conf
index 93fc62a..1da5299 100644
--- a/nix/home/programs/tmux/tmux.conf
+++ b/nix/home/programs/tmux/tmux.conf
@@ -31,7 +31,7 @@ set -g mouse on
 set -g set-clipboard off
 
 # big scrollback
-set -g history-limit 10240
+set-option -g history-limit 10240
 
 # smart pane switching with awareness of vim splits
 bind -n C-h run "(tmux display-message -p '#{pane_current_command}' | grep -iq vim && tmux send-keys C-h) || tmux select-pane -L"