diff --git a/zshrc b/zshrc
index 2f4d48b2f..fc48f6a98 100644
--- a/zshrc
+++ b/zshrc
@@ -31,7 +31,7 @@ export PATH=$HOME/bin:$PATH
 export IPYTHONDIR=$HOME/.ipython
 source ~/.profile
 
-#if [[ -z "$TMUX" ]]; then
-        #tmux att
-#fi
+if [[ -z "$TMUX" ]]; then
+    tmux attach
+fi