diff --git a/functions/tmux.fish b/functions/tmux.fish
index a061a93..72c7371 100644
--- a/functions/tmux.fish
+++ b/functions/tmux.fish
@@ -1,8 +1,10 @@
 if command -v tmux 2>&1
   function ta
-    if command tmux list-sessions 2>&1
+command tmux list-sessions 2>&1
+    switch $status
+      case '0'
       tmux a
-    else
+      case '*'
       tmux
     end
   end