diff --git a/devicetypes/smartthings/smartalert-siren.src/smartalert-siren.groovy b/devicetypes/smartthings/smartalert-siren.src/smartalert-siren.groovy
index 4481e76..a1585bf 100644
--- a/devicetypes/smartthings/smartalert-siren.src/smartalert-siren.groovy
+++ b/devicetypes/smartthings/smartalert-siren.src/smartalert-siren.groovy
@@ -16,7 +16,7 @@
  *  Date: 2013-03-05
  */
 metadata {
-	definition (name: "SmartAlert Siren", namespace: "smartthings", author: "SmartThings", ocfDeviceType: "x.com.st.smokedetector") {
+	definition (name: "SmartAlert Siren", namespace: "smartthings", author: "SmartThings", ocfDeviceType: "x.com.st.d.sensor.smoke") {
 		capability "Actuator"
 		capability "Switch"
 		capability "Sensor"
diff --git a/devicetypes/smartthings/zwave-siren.src/zwave-siren.groovy b/devicetypes/smartthings/zwave-siren.src/zwave-siren.groovy
index 9ee8071..9c0d62b 100644
--- a/devicetypes/smartthings/zwave-siren.src/zwave-siren.groovy
+++ b/devicetypes/smartthings/zwave-siren.src/zwave-siren.groovy
@@ -16,7 +16,7 @@
  *  Date: 2014-07-15
  */
 metadata {
-	definition (name: "Z-Wave Siren", namespace: "smartthings", author: "SmartThings") {
+	definition (name: "Z-Wave Siren", namespace: "smartthings", author: "SmartThings", ocfDeviceType: "x.com.st.d.sensor.smoke") {
 		capability "Actuator"
         capability "Alarm"
         capability "Battery"