diff --git a/esphome/esp-3dprinterpow.yaml b/esphome/esp-3dprinterpow.yaml
index 0c33fec..93e6a49 100644
--- a/esphome/esp-3dprinterpow.yaml
+++ b/esphome/esp-3dprinterpow.yaml
@@ -224,12 +224,12 @@ logger:
 mqtt:
   on_message:
     - topic: "${mqtt_local_command_topic}"
-      payload: "ON"
+      payload: "On"
       then:
         - switch.turn_on: relay
 
     - topic: "${mqtt_local_command_topic}"
-      payload: "OFF"
+      payload: "Off"
       then:
         - switch.turn_off: relay
 
@@ -419,7 +419,7 @@ switch:
 
         - mqtt.publish:
             topic: "${mqtt_local_status_topic}"
-            payload: "ON"
+            payload: "On"
             retain: false
 
     on_turn_off:
@@ -428,7 +428,7 @@ switch:
 
         - mqtt.publish:
             topic: "${mqtt_local_status_topic}"
-            payload: "OFF"
+            payload: "Off"
             retain: false
 
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