diff --git a/bin/login-shell b/bin/login-shell
new file mode 100755
index 0000000..499d5f7
--- /dev/null
+++ b/bin/login-shell
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+shell=$(basename "$SHELL")
+
+# check if reattach-to-user-namespace is available
+if [ -n "$(command -v reattach-to-user-namespace)" ]; then
+    reattach-to-user-namespace -l "$shell"
+else
+    exec "$shell -l"
+fi
diff --git a/tmux/tmux.conf.symlink b/tmux/tmux.conf.symlink
index 834d928..4643a47 100644
--- a/tmux/tmux.conf.symlink
+++ b/tmux/tmux.conf.symlink
@@ -1,4 +1,4 @@
-set -g default-command "reattach-to-user-namespace -l zsh"
+set -g default-command "login-shell"
 # tmux display things in 256 colors
 set -g default-terminal "tmux-256color-italic"
 set -g status-utf8 on