diff --git a/plugins/libkolab/lib/kolab_storage_cache_task.php b/plugins/libkolab/lib/kolab_storage_cache_task.php
index 06b64d39..9c776d75 100644
--- a/plugins/libkolab/lib/kolab_storage_cache_task.php
+++ b/plugins/libkolab/lib/kolab_storage_cache_task.php
@@ -24,7 +24,7 @@
 class kolab_storage_cache_task extends kolab_storage_cache
 {
     protected $extra_cols = array('dtstart', 'dtend');
-    protected $data_props = array('categories', 'status'); // start, due
+    protected $data_props = array('categories', 'status', 'complete', 'start', 'due');
 
     /**
      * Helper method to convert the given Kolab object into a dataset to be written to cache
diff --git a/plugins/tasklist/drivers/kolab/tasklist_kolab_driver.php b/plugins/tasklist/drivers/kolab/tasklist_kolab_driver.php
index 1bfff58b..73142be3 100644
--- a/plugins/tasklist/drivers/kolab/tasklist_kolab_driver.php
+++ b/plugins/tasklist/drivers/kolab/tasklist_kolab_driver.php
@@ -587,7 +587,7 @@ class tasklist_kolab_driver extends tasklist_driver
                 continue;
             }
 
-            foreach ($folder->select(array(array('tags','!~','x-complete'))) as $record) {
+            foreach ($folder->select(array(array('tags','!~','x-complete')), true) as $record) {
                 $rec = $this->_to_rcube_task($record, $list_id, false);
 
                 if ($this->is_complete($rec))  // don't count complete tasks