diff --git a/lib/teamocil/layout.rb b/lib/teamocil/layout.rb
index 1c118c3..0e3d2de 100644
--- a/lib/teamocil/layout.rb
+++ b/lib/teamocil/layout.rb
@@ -19,7 +19,7 @@ module Teamocil
       if @layout["session"].nil?
         windows = @layout["windows"]
       else
-        output << "tmux rename-session #{@layout["session"]["name"]}"
+        output << "tmux rename-session #{@layout["session"]["name"]}" if @layout["session"]["name"]
         windows = @layout["session"]["windows"]
       end