diff --git a/modules/programs/tmux.nix b/modules/programs/tmux.nix
index bf98a3f37b20..ed9876ea1344 100644
--- a/modules/programs/tmux.nix
+++ b/modules/programs/tmux.nix
@@ -94,6 +94,7 @@ let
       bind-key -N "Kill the current pane" x kill-pane
     ''}
 
+    set  -g mouse             ${boolToStr cfg.mouse}
     setw -g aggressive-resize ${boolToStr cfg.aggressiveResize}
     setw -g clock-mode-style  ${if cfg.clock24 then "24" else "12"}
     set  -s escape-time       ${toString cfg.escapeTime}
@@ -204,6 +205,8 @@ in {
         description = "VI or Emacs style shortcuts.";
       };
 
+      mouse = mkEnableOption "mouse support";
+
       newSession = mkOption {
         default = false;
         type = types.bool;