diff --git a/home/zsh.nix b/home/zsh.nix
index c56583b..5280df5 100644
--- a/home/zsh.nix
+++ b/home/zsh.nix
@@ -101,7 +101,8 @@
       zstyle ':completion:*' matcher-list 'm:{a-z}={A-Za-z}'
 
       if [[ -n "$PS1" ]] && [[ -z "$TMUX" ]] && [[ -n "$SSH_CONNECTION" ]]; then
-        tmux attach-session -t $USER || tmux new-session -s $USER
+	TMUX_EXE="${pkgs.tmux}/bin/tmux"
+        $TMUX_EXE attach-session -t $USER || $TMUX_EXE new-session -s $USER
       fi
     '';
   };