diff --git a/lib/controller.js b/lib/controller.js
index 80d1ad1f5..40fd1446b 100644
--- a/lib/controller.js
+++ b/lib/controller.js
@@ -10,7 +10,7 @@ const objectAssignDeep = require(`object-assign-deep`);
 const mqttConfigRegex = new RegExp(`${settings.get().mqtt.base_topic}/bridge/config/\\w+`, 'g');
 const mqttDeviceRegex = new RegExp(`${settings.get().mqtt.base_topic}/[\\w\\s\\d.-]+/set`, 'g');
 const mqttDevicePrefixRegex = new RegExp(`${settings.get().mqtt.base_topic}/[\\w\\s\\d.-]
-    +/[\\w\\s\\d\.\-]+/set`, 'g');
+    +/[\\w\\s\\d.-]+/set`, 'g');
 
 const pollInterval = 60 * 1000; // seconds * 1000.
 const softResetTimeout = 3600 * 1000; // seconds * 1000.