diff --git a/lib/routes/api/applications.js b/lib/routes/api/applications.js
index 5e944a3..50e0d3a 100644
--- a/lib/routes/api/applications.js
+++ b/lib/routes/api/applications.js
@@ -103,13 +103,13 @@ async function validateUpdate(req, sid) {
   }
 
   let urlError;
-  if (req.body.call_hook.url) {
+  if (req.body.call_hook) {
     urlError = await isInvalidUrl(req.body.call_hook.url);
     if (urlError) {
       throw new DbErrorBadRequest(`call_hook ${urlError}`);
     }
   }
-  if (req.body.call_status_hook.url) {
+  if (req.body.call_status_hook) {
     urlError = await isInvalidUrl(req.body.call_status_hook.url);
     if (urlError) {
       throw new DbErrorBadRequest(`call_status_hook ${urlError}`);