diff --git a/webapp/models/FragmentPool.php b/webapp/models/FragmentPool.php
index 4dcb9464..e499c24a 100644
--- a/webapp/models/FragmentPool.php
+++ b/webapp/models/FragmentPool.php
@@ -29,7 +29,15 @@ class FragmentPool extends BaseModel {
                      'alloc_time' => $allocTime,
                  )
                 );
-        return $rows ? $rows : array();
+        $items = array();
+        if ($rows) {
+            foreach ($rows as $row) {
+                if ($row['fragment_num'] > 0) {
+                    array_push($items, $row);
+                }
+            }
+        }
+        return $items;
     }
 
 }