diff --git a/devicetypes/smartthings/zigbee-dimmer-power.src/zigbee-dimmer-power.groovy b/devicetypes/smartthings/zigbee-dimmer-power.src/zigbee-dimmer-power.groovy
index 2b34df5c9bc..a781e777149 100644
--- a/devicetypes/smartthings/zigbee-dimmer-power.src/zigbee-dimmer-power.groovy
+++ b/devicetypes/smartthings/zigbee-dimmer-power.src/zigbee-dimmer-power.groovy
@@ -97,7 +97,7 @@ def on() {
 }
 
 def setLevel(value) {
-    zigbee.setLevel(value) + (value?.ToInteger() > 0 ? zigbee.on() : [])
+    zigbee.setLevel(value) + (value?.toInteger() > 0 ? zigbee.on() : [])
 }
 
 /**