diff --git a/tmux-sessionizer b/tmux-sessionizer
index df614d7..a98f45c 100755
--- a/tmux-sessionizer
+++ b/tmux-sessionizer
@@ -59,9 +59,9 @@ fi
 SEL_NAME=$(echo "$SEL_NAME" | tr "[:lower:]" "[:upper:]")
 
 tmux new-session -d -s "$SEL_NAME" -c "$SEL_DIR"
-if [ -e "$TMUX" ]; then
-  tmux switch-client -t "$SEL_NAME"
-else
+if [ -z "$TMUX" ]; then
   tmux attach -t "$SEL_NAME"
+else
+  tmux switch-client -t "$SEL_NAME"
 fi