diff --git a/devicetypes/smartthings/zwave-motion-sensor.src/zwave-motion-sensor.groovy b/devicetypes/smartthings/zwave-motion-sensor.src/zwave-motion-sensor.groovy
index b46f9c6..4015be3 100644
--- a/devicetypes/smartthings/zwave-motion-sensor.src/zwave-motion-sensor.groovy
+++ b/devicetypes/smartthings/zwave-motion-sensor.src/zwave-motion-sensor.groovy
@@ -119,6 +119,10 @@ def zwaveEvent(physicalgraph.zwave.commands.notificationv3.NotificationReport cm
 def zwaveEvent(physicalgraph.zwave.commands.wakeupv1.WakeUpNotification cmd)
 {
 	def result = [createEvent(descriptionText: "${device.displayName} woke up", isStateChange: false)]
+
+	if (msr == "011A-0601-0901") {  // Enerwave motion doesn't always get the associationSet that the hub sends on join
+		result << response(zwave.associationV1.associationSet(groupingIdentifier:1, nodeId:zwaveHubNodeId))
+	}
 	if (!state.lastbat || (new Date().time) - state.lastbat > 53*60*60*1000) {
 		result << response(zwave.batteryV1.batteryGet())
 		result << response("delay 1200")
@@ -179,4 +183,4 @@ def zwaveEvent(physicalgraph.zwave.commands.manufacturerspecificv2.ManufacturerS
 
 	result << createEvent(descriptionText: "$device.displayName MSR: $msr", isStateChange: false)
 	result
-}
+}
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