diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/resourceload/ResourceLoadController.java b/libreplan-webapp/src/main/java/org/libreplan/web/resourceload/ResourceLoadController.java
index 3ded13ff3..789d24b51 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/resourceload/ResourceLoadController.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/resourceload/ResourceLoadController.java
@@ -192,6 +192,7 @@ public class ResourceLoadController implements Composer {
             resourcesLoadPanel = null;
             listeners = new ListenerTracker();
             visualizationModifiers = null;
+            listenersToAdd = null;
         }
 
         public IOnTransaction<Void> reload() {