diff --git a/.chezmoitemplates/zshrc_darwin.tmpl b/.chezmoitemplates/zshrc_darwin.tmpl
index 5f67466..ec3b80f 100644
--- a/.chezmoitemplates/zshrc_darwin.tmpl
+++ b/.chezmoitemplates/zshrc_darwin.tmpl
@@ -131,6 +131,6 @@ export EDITOR=vim
 
 source <(/opt/homebrew/bin/starship init zsh --print-full-init)
 
-if [ -x "$(command -v tmux)" ] && [ -n "${DISPLAY}" ] && [ -z "${TMUX}" ]; then
+if [ -x "$(command -v tmux)" ] && [ -z "${TMUX}" ]; then
     exec tmux new-session -A -s ${USER} >/dev/null 2>&1
 fi
diff --git a/README_darwin.md b/README_darwin.md
index a9145ed..b41b3ec 100644
--- a/README_darwin.md
+++ b/README_darwin.md
@@ -13,6 +13,8 @@ chezmoi init -v --apply ssh://git@brothertec.eu:1023/simono41/dotfiles.git
 
 ## Install some Terminal Tools
 ~~~
+brew install tmux
+brew install reattach-to-user-namespace
 brew install starship
 brew install zsh-completions
 brew install zsh-autosuggestion