diff --git a/Classes/Domain/Repository/DocumentRepository.php b/Classes/Domain/Repository/DocumentRepository.php
index 7e09a5df7..3c0187759 100644
--- a/Classes/Domain/Repository/DocumentRepository.php
+++ b/Classes/Domain/Repository/DocumentRepository.php
@@ -364,7 +364,7 @@ public function getStatisticsForSelectedCollection($settings)
                 ->fetchFirstColumn();
         }
 
-        return ['titles' => $countTitles, 'volumes' => $countVolumes];
+        return ['titles' => $countTitles[0] ?? 0, 'volumes' => $countVolumes[0] ?? 0];
     }
 
     /**