diff --git a/src/main/java/org/olat/commons/calendar/ui/components/FullCalendarComponent.java b/src/main/java/org/olat/commons/calendar/ui/components/FullCalendarComponent.java
index 0fa053c74c1f1b31213aaa9f4a688f6f8ac991fc..acaa327568faef50a4fe9b59eab523eac75c8707 100644
--- a/src/main/java/org/olat/commons/calendar/ui/components/FullCalendarComponent.java
+++ b/src/main/java/org/olat/commons/calendar/ui/components/FullCalendarComponent.java
@@ -147,6 +147,7 @@ public class FullCalendarComponent extends AbstractComponent {
 		super.validate(ureq, vr);
 		vr.getJsAndCSSAdder().addRequiredStaticJsFile("js/jquery/fullcalendar/fullcalendar.min.js");
 		vr.getJsAndCSSAdder().addRequiredStaticJsFile("js/jquery/ui/jquery-ui-1.11.4.custom.dnd.min.js");
+		vr.getJsAndCSSAdder().addRequiredStaticJsFile("js/jquery/ui/jquery-ui-1.11.4.custom.resize.min.js");
 	}
 	
 	public boolean isOccurenceOfCalendarEvent(String eventId) {