diff --git a/mqtt_smarthome b/mqtt_smarthome
index 473cc9c..360f34c 100755
--- a/mqtt_smarthome
+++ b/mqtt_smarthome
@@ -1,4 +1,16 @@
 #!/bin/sh
 clear
-/opt/mqtt_sniffer/venv/bin/python /opt/mqtt_sniffer/mqtt_sniffer.py -f mqtt.home
+
+#!/bin/sh
+#
+
+for s in $(tmux list-sessions -F '#{session_name}'); do
+    p=$(tmux list-panes -F '#{pane_tty}' -t "$s")
+    if [ "$p" = "$(tty)" ]; then
+        # Session already running
+        exit 0
+    fi
+done
+
+tmux attach-session -t mqtt_smarthome || tmux new-session -s mqtt_smarthome "/opt/mqtt_sniffer/venv/bin/python /opt/mqtt_sniffer/mqtt_sniffer.py -f mqtt.home"