diff --git a/.tmux.conf b/.tmux.conf
index 52b7011..4926d85 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -46,3 +46,6 @@ set -a terminal-features "tmux-direct:RGB"
 
 # fish!
 set-option -g default-shell /bin/fish
+
+# rebind the SSH_TTY environment variable on reconnect
+set -ag update-environment "SSH_TTY"