diff --git a/os/dev/default.nix b/os/dev/default.nix
index 5183246..3076618 100644
--- a/os/dev/default.nix
+++ b/os/dev/default.nix
@@ -222,6 +222,7 @@ in {
       };
     };
     tmux = {
+      enable = true;
       mouse = true;
       prefix = "C-Space";
       keyMode = "vi";
diff --git a/overlays/default.nix b/overlays/default.nix
index a4f9ee6..4ec9fca 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -9,12 +9,14 @@
     # example = prev.example.overrideAttrs (oldAttrs: rec {
     # ...
     # });
-    tmuxPlugins = prev.tmuxPlugins.extend (final': prev': {
-      tokyo-night-tmux = prev.callPackage ../pkgs/tmux-tokyo-night.nix {
-        prev = prev;
-        lib = prev.lib;
+    tmuxPlugins =
+      prev.tmuxPlugins
+      // {
+        tokyo-night-tmux = prev.callPackage ../pkgs/tmux-tokyo-night.nix {
+          pkgs = prev;
+          lib = prev.lib;
+        };
       };
-    });
     koboldcpp = prev.koboldcpp.override {
       cublasSupport = true;
     };
diff --git a/pkgs/tmux-tokyo-night.nix b/pkgs/tmux-tokyo-night.nix
index 68ea766..c51a53d 100644
--- a/pkgs/tmux-tokyo-night.nix
+++ b/pkgs/tmux-tokyo-night.nix
@@ -1,12 +1,12 @@
 # USED IN OVERLAY
 {
-  prev,
+  pkgs,
   lib,
 }:
-prev.tmuxPlugins.mkTmuxPlugin {
+pkgs.tmuxPlugins.mkTmuxPlugin {
   pluginName = "tokyo-night-tmux";
   version = "c3bc283cceeefaa7e5896878fe20711f466ab591";
-  src = prev.fetchFromGithub {
+  src = pkgs.fetchFromGitHub {
     owner = "janoamaral";
     repo = "tokyo-night-tmux";
     rev = "c3bc283cceeefaa7e5896878fe20711f466ab591";