diff --git a/calendar/js/app.js b/calendar/js/app.js
index afc0cd034e..541d925211 100644
--- a/calendar/js/app.js
+++ b/calendar/js/app.js
@@ -1625,8 +1625,8 @@ var CalendarApp = /** @class */ (function (_super) {
                     }
                     else if (template) {
                         // Open conflicts
-                        var data = jQuery.extend({}, template.widgetContainer.getArrayMgr('content').data, app.calendar.quick_add);
-                        egw.openPopup(egw.link('/index.php?menuaction=calendar.calendar_uiforms.ajax_conflicts', data), 850, 300, 'conflicts', 'calendar');
+                        var data = jQuery.extend({ menuaction: 'calendar.calendar_uiforms.ajax_conflicts' }, template.widgetContainer.getArrayMgr('content').data, app.calendar.quick_add);
+                        egw.openPopup(egw.link('/index.php', data), 850, 300, 'conflicts', 'calendar');
                         delete app.calendar.quick_add;
                         // Close the JS dialog
                         this.dialog.destroy();
diff --git a/calendar/js/app.ts b/calendar/js/app.ts
index c2e8a6b3b7..aea0a79d64 100644
--- a/calendar/js/app.ts
+++ b/calendar/js/app.ts
@@ -1760,11 +1760,15 @@ class CalendarApp extends EgwApp
 				else if (template)
 				{
 					// Open conflicts
-					var data = jQuery.extend({},template.widgetContainer.getArrayMgr('content').data, app.calendar.quick_add);
+					var data = jQuery.extend(
+					{menuaction: 'calendar.calendar_uiforms.ajax_conflicts'},
+				        template.widgetContainer.getArrayMgr('content').data,
+						app.calendar.quick_add
+					);
 
 					egw.openPopup(
 						egw.link(
-							'/index.php?menuaction=calendar.calendar_uiforms.ajax_conflicts',
+							'/index.php',
 							data
 						),
 						850, 300,