diff --git a/source/_components/device_tracker.mqtt.markdown b/source/_components/device_tracker.mqtt.markdown
index 2b1bd0d519a1..d60b895c50ed 100644
--- a/source/_components/device_tracker.mqtt.markdown
+++ b/source/_components/device_tracker.mqtt.markdown
@@ -22,8 +22,8 @@ To use this device tracker in your installation, add the following to your `conf
 device_tracker:
   - platform: mqtt
     devices:
-      paulus_oneplus: /location/paulus
-      annetherese_n4: /location/annetherese
+      paulus_oneplus: 'location/paulus'
+      annetherese_n4: 'location/annetherese'
 ```
 
 Configuration variables: