diff --git a/app/Generator/Chart/Bill/ChartJsBillChartGenerator.php b/app/Generator/Chart/Bill/ChartJsBillChartGenerator.php
index fea218500d..3f219606fb 100644
--- a/app/Generator/Chart/Bill/ChartJsBillChartGenerator.php
+++ b/app/Generator/Chart/Bill/ChartJsBillChartGenerator.php
@@ -75,8 +75,7 @@ class ChartJsBillChartGenerator implements BillChartGeneratorInterface
             /*
              * journalAmount has been collected in BillRepository::getJournals
              */
-            $journalAmount  = TransactionJournal::amountPositive($entry) ?? '0';
-            $actualAmount[] = round($journalAmount, 2);
+            $actualAmount[] = round(TransactionJournal::amountPositive($entry), 2);
         }
 
         $data['datasets'][] = [