diff --git a/frontend_tests/node_tests/user_events.js b/frontend_tests/node_tests/user_events.js
index ca0cf7b34e..92c4770714 100644
--- a/frontend_tests/node_tests/user_events.js
+++ b/frontend_tests/node_tests/user_events.js
@@ -134,14 +134,11 @@ initialize();
     assert(person.timezone);
 
     var error_msg;
-    var error_details;
-    global.blueslip.error = function (error_message_arg, error_details_arg) {
+    global.blueslip.error = function (error_message_arg) {
         error_msg = error_message_arg;
-        error_details = error_details_arg;
     };
 
     assert(!user_events.update_person({user_id: 29, full_name: 'Sir Isaac Newton'}));
-    assert.equal(error_msg, "Got update_person event for unexpected user");
-    assert.equal(error_details.email, 29);
+    assert.equal(error_msg, "Got update_person event for unexpected user 29");
 
 }());