diff --git a/main.c b/main.c
index 705942b..c8fa9ee 100755
--- a/main.c
+++ b/main.c
@@ -145,6 +145,9 @@ void *thread_func(void *data)
                 wait_rest_of_period(&pinfo);
         }
 
+        // "Zündung" aus
+        WriteOutputPin(GPIO_OUT_PWRON, 0);
+
         // Disconnect from mqtt broker
         MqttClient_Close();