diff --git a/ArmoredCar/ArmoredCar/FormCar.cs b/ArmoredCar/ArmoredCar/FormCar.cs
index 7332925..8e97050 100644
--- a/ArmoredCar/ArmoredCar/FormCar.cs
+++ b/ArmoredCar/ArmoredCar/FormCar.cs
@@ -96,10 +96,11 @@ namespace ArmoredCar
         }
 
         private void buttonSelectArmoredCar_Click(object sender, EventArgs e)
-        {
-           
-            SelectedCar = _car;
-            DialogResult = DialogResult.OK;
+        { 
+            if (_car != null) { 
+                SelectedCar = _car;
+                DialogResult = DialogResult.OK;
+            }
             
         }