diff --git a/app/Library/Taxes/TaxesHelper.php b/app/Library/Taxes/TaxesHelper.php
index 6291b1595..cd4e7b0af 100644
--- a/app/Library/Taxes/TaxesHelper.php
+++ b/app/Library/Taxes/TaxesHelper.php
@@ -101,7 +101,7 @@ class TaxesHelper {
     public function GetPiSalesGross($start, $end) {
         $revenue = 0.00;
 
-        $grosses = PISaleJournal::whereBetween('date', [$start, $end]);
+        $grosses = PISaleJournal::whereBetween('date', [$start, $end])->get()->toArray();
 
         foreach($grosses as $gross) {
             $revenue += ($gross['quantity'] * $gross['unit_price']);
diff --git a/app/Models/Finances/PISaleJournal.php b/app/Models/Finances/PISaleJournal.php
index 770f96632..bcd9f9e4f 100644
--- a/app/Models/Finances/PISaleJournal.php
+++ b/app/Models/Finances/PISaleJournal.php
@@ -22,8 +22,6 @@ class PISaleJournal extends Model
      * @var array
      */
     protected $fillable = [
-        'id',
-        'corp_id',
         'division',
         'client_id',
         'date',
diff --git a/app/Models/Finances/PlanetProductionTaxJournal.php b/app/Models/Finances/PlanetProductionTaxJournal.php
index d3720c61f..d2708f97f 100644
--- a/app/Models/Finances/PlanetProductionTaxJournal.php
+++ b/app/Models/Finances/PlanetProductionTaxJournal.php
@@ -22,6 +22,9 @@ class PlanetProductionTaxJournal extends Model
      * @var array
      */
     protected $fillable = [
+        'id',
+        'corporation_id',
+        'division',
         'amount',
         'balance',
         'context_id',