diff --git a/tmux.conf b/tmux.conf
index 817da83..0e8e85d 100644
--- a/tmux.conf
+++ b/tmux.conf
@@ -44,6 +44,9 @@ set -g status-justify        centre
 set -g status-left           '@#h ⧉ #S'              # @host ⧉session
 set -g status-right          '%Y-%m-%d %a %H:%M'    # date, weekday, time
 
+# Make sure we always start at 1, even when invoked from a wrapper script
+set-environment -g SHLVL 1
+
 #
 # Colors
 #