diff --git a/zshrc b/zshrc
index f285b2d..9d3a1c8 100644
--- a/zshrc
+++ b/zshrc
@@ -16,6 +16,6 @@ fi
 
 alias tmux="tmux -2"
 alias attach="tmux a"
-if [ -z "$TMUX" ]; then tmux; fi
+if [ -z "$TMUX" ]; then tmux; exit; fi
 
 DISABLE_AUTO_TITLE=true