1 files changed, 3 insertions, 1 deletions
diff --git a/plugins/MultiSites/API.php b/plugins/MultiSites/API.php
index b6b0a4d1ae..5aba1c4764 100755
--- a/plugins/MultiSites/API.php
+++ b/plugins/MultiSites/API.php
@@ -218,7 +218,9 @@ class Piwik_MultiSites_API
         ) {
             $dataTable = $dataTable->mergeChildren();
         } else {
-            if (!$dataTable instanceof Piwik_DataTable_Array) {
+            if (!$dataTable instanceof Piwik_DataTable_Array
+                && $dataTable->getRowsCount() > 0
+            ) {
                 $firstDataTableRow = $dataTable->getFirstRow();
                 $firstDataTableRow->setColumn('label', $sites);
             }