diff --git a/app/Domain/EquipmentExport.php b/app/Domain/EquipmentExport.php
index 01966703..d203ff7c 100644
--- a/app/Domain/EquipmentExport.php
+++ b/app/Domain/EquipmentExport.php
@@ -37,7 +37,7 @@ public function generator(): Generator
                 $equipmentItem->id_number,
                 $equipmentItem->name,
                 $equipmentItem->labels?->implode(", "),
-                $equipmentItem->is_mobile,
+                $equipmentItem->is_mobile ? "Tak" : "Nie",
                 $equipmentItem->assignee->profile->full_name ?? "",
                 $equipmentItem->assigned_at ? Date::dateTimeToExcel($equipmentItem->assigned_at) : "",
             ];
diff --git a/app/Models/EquipmentItem.php b/app/Models/EquipmentItem.php
index 10326d48..224fb6a8 100644
--- a/app/Models/EquipmentItem.php
+++ b/app/Models/EquipmentItem.php
@@ -30,6 +30,7 @@ class EquipmentItem extends Model
 
     protected $casts = [
         "assigned_at" => "date",
+        "is_mobile" => "boolean",
         "labels" => AsCollection::class,
     ];
     protected $fillable = [