diff --git a/NEWS b/NEWS
index f1b7ead5a..0e353a3d1 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,7 @@ Enhancements
 
 Bug fixes
  - [web] include mail account name in form validation (#4532)
+ - [web] calendar properties were not completely reset on cancel
 
 4.0.2 (2018-08-24)
 ------------------
diff --git a/UI/WebServerResources/js/Scheduler/Calendar.service.js b/UI/WebServerResources/js/Scheduler/Calendar.service.js
index eb3fc7142..38199a1b4 100644
--- a/UI/WebServerResources/js/Scheduler/Calendar.service.js
+++ b/UI/WebServerResources/js/Scheduler/Calendar.service.js
@@ -619,7 +619,7 @@
     angular.forEach(this, function(value, key) {
       if (key != 'constructor' &&
           key[0] != '$') {
-        calendar[key] = value;
+        calendar[key] = angular.copy(value);
       }
     });
     return calendar;