diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BandboxFinder.java
index db9bf99f7..61ca9e21f 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BandboxFinder.java
@@ -36,19 +36,14 @@ import org.zkoss.zul.SimpleListModel;
  */
 public abstract class BandboxFinder implements IBandboxFinder {
 
-    ListModel model;
-
-    public BandboxFinder() {
-        initializeModel();
-    }
-
-    @Transactional(readOnly = true)
-    private void initializeModel() {
-        model = new SimpleListModel(getAll());
-    }
+    private ListModel model;
 
     @Override
+    @Transactional(readOnly = true)
     public ListModel getModel() {
+        if (model == null) {
+            model = new SimpleListModel(getAll());
+        }
         return model;
     }