diff --git a/zsh-autotmux/.zsh/99-autotmux.zsh b/zsh-autotmux/.zsh/99-autotmux.zsh
index 4dee6ef..3104bf4 100644
--- a/zsh-autotmux/.zsh/99-autotmux.zsh
+++ b/zsh-autotmux/.zsh/99-autotmux.zsh
@@ -1,5 +1,5 @@
 if [ -z "$TMUX" ]; then
-        if which tmux >/dev/null 2>&1; then
-                tmux -q has-session && exec tmux attach-session -d || exec tmux new-session
-        fi
+    if which tmux >/dev/null 2>&1; then 
+        tmux -q has-session && exec tmux attach-session -d || exec tmux new-session -c ${TMUX_SHELL:-/bin/sh}
+    fi
 fi