diff --git a/libreplan-webapp/src/main/java/org/libreplan/web/resources/worker/WorkerCRUDController.java b/libreplan-webapp/src/main/java/org/libreplan/web/resources/worker/WorkerCRUDController.java
index 6ec0d9237..96d1a2da0 100644
--- a/libreplan-webapp/src/main/java/org/libreplan/web/resources/worker/WorkerCRUDController.java
+++ b/libreplan-webapp/src/main/java/org/libreplan/web/resources/worker/WorkerCRUDController.java
@@ -1069,7 +1069,7 @@ public class WorkerCRUDController extends GenericForwardComposer implements
 
     public void setBoundUser(User user) {
         workerModel.setBoundUser(user);
-        updateUserBindingComponents();
+        Util.reloadBindings(userBindingGroupbox.getFellow("existingUserPanel"));
     }
 
     public boolean isUserSelected() {
diff --git a/libreplan-webapp/src/main/webapp/resources/worker/_edition.zul b/libreplan-webapp/src/main/webapp/resources/worker/_edition.zul
index 56d9e3008..29823ef30 100644
--- a/libreplan-webapp/src/main/webapp/resources/worker/_edition.zul
+++ b/libreplan-webapp/src/main/webapp/resources/worker/_edition.zul
@@ -101,7 +101,9 @@
                     <caption label="${i18n:_('Bound user')}" />
                     <radiogroup id="userBindingRadiogroup"
                         onCheck="controller.updateUserBindingView();" />
-                    <panel title="${i18n:_('Existing user')}" border="normal"
+                    <panel title="${i18n:_('Existing user')}"
+                        id="existingUserPanel"
+                        border="normal"
                         visible="@{controller.existingUser}">
                         <panelchildren>
                             <grid fixedLayout="true">