diff --git a/lib/mqtt.js b/lib/mqtt.js
index 0f541874..1bc0c476 100644
--- a/lib/mqtt.js
+++ b/lib/mqtt.js
@@ -23,8 +23,8 @@ class MQTT {
             options.clientId = mqttSettings.client_id;
         }
 
-        if (mqttSettings.selfsigned) {
-            logger.debug(`Using Self Signed Cert. Ignoring warnings.`);
+        if (mqttSettings.hasOwnProperty('reject_unauthorized') && !mqttSettings.reject_unauthorized) {
+            logger.debug(`MQTT reject_unauthorized set false, ignoring certificate warnings.`);
             options.rejectUnauthorized = false;
         }