diff --git a/akonadi/calendar/etmcalendar.cpp b/akonadi/calendar/etmcalendar.cpp
--- a/akonadi/calendar/etmcalendar.cpp
+++ b/akonadi/calendar/etmcalendar.cpp
@@ -43,6 +43,7 @@
 
 #include <QItemSelectionModel>
 #include <QTreeView>
+#include <QTimer>
 
 #include <recursivecollectionfilterproxymodel.h>
 #include <mimetypechecker.h>
@@ -214,9 +215,13 @@
     , mCalFilterPartStatusProxyModel(0)
     , mSelectionProxy(0)
     , mCollectionFilteringEnabled(true)
+    , mLoadFromModelTimer(new QTimer)
     , q(qq)
 {
     mListensForNewItems = true;
+    mLoadFromModelTimer->setInterval(0);
+    mLoadFromModelTimer->setSingleShot(true);
+    connect(mLoadFromModelTimer, SIGNAL(timeout()), SLOT(loadFromETM()));
 }
 
 void ETMCalendarPrivate::init()
@@ -280,7 +285,8 @@
     connect(mFilteredETM, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)),
             SLOT(onRowsAboutToBeRemovedInFilteredModel(QModelIndex,int,int)));
 
-    loadFromETM();
+    //Give the caller a chance to call setCollectionFilteringEnabled before loading data
+    mLoadFromModelTimer->start();
 }
 
 void ETMCalendarPrivate::onCollectionChanged(const Akonadi::Collection &collection,
@@ -549,13 +555,13 @@
 void ETMCalendarPrivate::onLayoutChangedInFilteredModel()
 {
     clear();
-    loadFromETM();
+    mLoadFromModelTimer->start();
 }
 
 void ETMCalendarPrivate::onModelResetInFilteredModel()
 {
     clear();
-    loadFromETM();
+    mLoadFromModelTimer->start();
 }
 
 void ETMCalendarPrivate::onDataChangedInFilteredModel(const QModelIndex &topLeft,
diff --git a/akonadi/calendar/etmcalendar_p.h b/akonadi/calendar/etmcalendar_p.h
--- a/akonadi/calendar/etmcalendar_p.h
+++ b/akonadi/calendar/etmcalendar_p.h
@@ -90,9 +90,9 @@
 
     void init();
     void setupFilteredETM();
-    void loadFromETM();
 
 public Q_SLOTS:
+    void loadFromETM();
     Akonadi::Item::List itemsFromModel(const QAbstractItemModel *model,
                                        const QModelIndex &parentIndex = QModelIndex(),
                                        int start = 0,
@@ -143,6 +143,7 @@
     bool mCollectionFilteringEnabled;
     QSet<Akonadi::Collection::Id> mPopulatedCollectionIds;
     QStringList mMimeTypes;
+    QTimer *mLoadFromModelTimer;
 private:
     ETMCalendar *const q;
 };