diff --git a/lib/server-response.js b/lib/server-response.js
index 538b40e..853a6e2 100644
--- a/lib/server-response.js
+++ b/lib/server-response.js
@@ -42,10 +42,11 @@ class ServerResponse {
   * @return {object} response - object suitable for sending via HTTP
   */
   createResponseObject(httpCode, resultPayload) {
+    let status = ServerResponse.STATUS[httpCode] || [`${httpCode}`, `Unknown statusCode ${httpCode}`];
     let response = Object.assign({
       statusCode: httpCode,
-      statusMessage: ServerResponse.STATUS[httpCode][ServerResponse.STATUSMESSAGE],
-      statusDescription: ServerResponse.STATUS[httpCode][ServerResponse.STATUSDESCRIPTION],
+      statusMessage: status[ServerResponse.STATUSMESSAGE],
+      statusDescription: status[ServerResponse.STATUSDESCRIPTION],
       result: {}
     }, resultPayload || {});
     return response;