diff --git a/home-manager/modules/zsh.nix b/home-manager/modules/zsh.nix
index 97e700a..389aae3 100644
--- a/home-manager/modules/zsh.nix
+++ b/home-manager/modules/zsh.nix
@@ -32,7 +32,7 @@
 
     initExtra = ''
       # Start Tmux automatically if not already running
-      if [ -z "$TMUX" ]; then
+      if [ -z "$TMUX" ] && [ -n "$DISPLAY" ]; then
         tmux attach-session -t default || tmux new-session -s default
       fi
     '';