diff --git a/client/modules/crm/src/views/calendar/calendar.js b/client/modules/crm/src/views/calendar/calendar.js
index 15a3492984..c3ab16c197 100644
--- a/client/modules/crm/src/views/calendar/calendar.js
+++ b/client/modules/crm/src/views/calendar/calendar.js
@@ -158,10 +158,6 @@ Espo.define('crm:views/calendar/calendar', ['view', 'lib!full-calendar'], functi
             if (Object.prototype.toString.call(this.enabledScopeList) !== '[object Array]') {
                 this.enabledScopeList = [];
             }
-
-            this.once('remove', function () {
-                this.isRemoved = true;
-            }, this);
         },
 
         toggleScopeFilter: function (name) {
@@ -380,7 +376,7 @@ Espo.define('crm:views/calendar/calendar', ['view', 'lib!full-calendar'], functi
         },
 
         adjustSize: function () {
-            if (this.isRemoved) return;
+            if (this.isRemoved()) return;
             var height = this.getCalculatedHeight();
             this.$calendar.fullCalendar('option', 'contentHeight', height);
         },