diff --git a/modules/statistics/lib/StatisticsController.php b/modules/statistics/lib/StatisticsController.php
index f57f9e732514aa48dc721e9ab4d54f1e1e341ddf..2da8806a74faeb4c47325ac7e31ebbe473960489 100644
--- a/modules/statistics/lib/StatisticsController.php
+++ b/modules/statistics/lib/StatisticsController.php
@@ -131,7 +131,6 @@ class StatisticsController
         $delimiter = $dataset->getDelimiter();
         $timeres = $dataset->getTimeRes();
         $fileslot = $dataset->getFileslot();
-        $availableFileSlots = $statrule->availableFileSlots($timeres);
         $timeNavigation = $statrule->getTimeNavigation($timeres, $preferTime);
         $piedata = $dataset->getPieData();
         $datasets = [$dataset->getPercentValues()];
diff --git a/modules/statistics/www/showstats.php b/modules/statistics/www/showstats.php
index bb060b84ae084275e05abf35242f55659c0dd812..d2a15bd450e8ccdcf149b5257ebbe2c8db1cfafb 100644
--- a/modules/statistics/www/showstats.php
+++ b/modules/statistics/www/showstats.php
@@ -77,7 +77,6 @@ $delimiter = $dataset->getDelimiter();
 
 $timeres = $dataset->getTimeRes();
 $fileslot = $dataset->getFileslot();
-$availableFileSlots = $statrule->availableFileSlots($timeres);
 
 $timeNavigation = $statrule->getTimeNavigation($timeres, $preferTime);