diff --git a/WifiControlSensor/MQTT.ino b/WifiControlSensor/MQTT.ino
index a00998b..61df5c0 100644
--- a/WifiControlSensor/MQTT.ino
+++ b/WifiControlSensor/MQTT.ino
@@ -156,7 +156,7 @@ void MqttChangeGpioValue(int gpio, int value) {
 void MqttCheckSubscription() {
   if (MqttConnect() == 0) {
     Adafruit_MQTT_Subscribe *subscription;
-    while (subscription = mqtt->readSubscription(0)) {
+    while ((subscription = mqtt->readSubscription(0))) {
       int gpio = getGpioFromSubscription(subscription);
       SKETCH_DEBUG_PRINT("Got Subscription for gpio ");
       SKETCH_DEBUG_PRINTLN(gpio);
diff --git a/WifiControlSensor/WebServer.ino b/WifiControlSensor/WebServer.ino
index eb717b5..fec9cd0 100644
--- a/WifiControlSensor/WebServer.ino
+++ b/WifiControlSensor/WebServer.ino
@@ -33,6 +33,7 @@ void WebHandleRoot() {
 #endif
               "Free space: " + ESP.getFreeSketchSpace() + "<br/>"
               "Free heap: " + ESP.getFreeHeap() + "<br/>"
+              "Build the " + __DATE__ + " at " + __TIME__ + "<br/>"
               "</fieldset>"
              );
 }