diff --git a/tmux/tmux-nerd-font-window-name.yml b/tmux/tmux-nerd-font-window-name.yml
index 874b027..8b50e99 100644
--- a/tmux/tmux-nerd-font-window-name.yml
+++ b/tmux/tmux-nerd-font-window-name.yml
@@ -5,6 +5,9 @@ config:
 icons:
   bat: "󰭟"
   gh: ""
+  nix-env: "󱄅"
+  nix-shell: "󱄅"
+  nix: "󱄅"
   ollama: "󰚩"
   pnpm: ""
   reattach-to-user-namespace: ""