diff --git a/.install_skripte/install_terminal_pcks.sh b/.install_skripte/install_terminal_pcks.sh
index fc91809..f6b96b6 100755
--- a/.install_skripte/install_terminal_pcks.sh
+++ b/.install_skripte/install_terminal_pcks.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 sudo pacman -S --needed \
     nodejs \
     npm \
@@ -7,7 +9,8 @@ sudo pacman -S --needed \
     ruff \
     python-ruff \
     chromium \
-    selene
+    selene \
+    tmux
 
 npm install -g vscode-js-debug
 npm install -g eslint_d