diff --git a/handlers.go b/handlers.go
index d030fa7..c85f239 100644
--- a/handlers.go
+++ b/handlers.go
@@ -15,7 +15,6 @@
 
 import (
 	"encoding/json"
-	"fmt"
 	"net"
 	"net/http"
 	"strconv"
@@ -78,10 +77,9 @@
 
 	}
 
-	fmt.Println(devices)
-
 	for _, device := range devices.OltDevices {
-		devID := device.Host + ":" + strconv.Itoa(device.Port)
+		// NOTE if it's an OLT then sadisRequestID is the device serial number
+		devID := device.SerialNumber
 		if devID == sadisRequestID {
 			log.Infof("Found OLT device with ID %s", devID)
 
diff --git a/sadisTypes.go b/sadisTypes.go
index 96ac92c..b28c1f7 100644
--- a/sadisTypes.go
+++ b/sadisTypes.go
@@ -73,10 +73,11 @@
   XOS vOLT device format
 */
 type oltDevice struct {
-	Uplink string `json:"uplink"`
-	Host   string `json:"host"`
-	Port   int    `json:"port"`
-	NasID  string `json:"nas_id"`
+	Uplink       string `json:"uplink"`
+	Host         string `json:"host"`
+	Port         int    `json:"port"`
+	NasID        string `json:"nas_id"`
+	SerialNumber string `json:"serial_number"`
 }
 
 type oltDevices struct {