diff --git a/protocols/rest/api/src/main/java/org/onosproject/protocol/rest/DefaultRestSBDevice.java b/protocols/rest/api/src/main/java/org/onosproject/protocol/rest/DefaultRestSBDevice.java
index 18ed537..7513009 100644
--- a/protocols/rest/api/src/main/java/org/onosproject/protocol/rest/DefaultRestSBDevice.java
+++ b/protocols/rest/api/src/main/java/org/onosproject/protocol/rest/DefaultRestSBDevice.java
@@ -200,13 +200,13 @@
         return MoreObjects.toStringHelper(this)
                 .omitNullValues()
                 .add("url", url)
-                .add("testUrl", testUrl)
                 .add("protocol", protocol)
                 .add("username", username)
-                .add("port", port)
                 .add("ip", ip)
+                .add("port", port)
                 .add("authentication", authenticationScheme.name())
                 .add("token", token)
+                .add("testUrl", testUrl.orElse(null))
                 .add("manufacturer", manufacturer.orElse(null))
                 .add("hwVersion", hwVersion.orElse(null))
                 .add("swVersion", swVersion.orElse(null))