diff --git a/ProjectAircraftCarrier_/ProjectAircraftCarrier_/FormWarshipCollection.cs b/ProjectAircraftCarrier_/ProjectAircraftCarrier_/FormWarshipCollection.cs
index 0b2af67..577429a 100644
--- a/ProjectAircraftCarrier_/ProjectAircraftCarrier_/FormWarshipCollection.cs
+++ b/ProjectAircraftCarrier_/ProjectAircraftCarrier_/FormWarshipCollection.cs
@@ -63,7 +63,7 @@ public partial class FormWarshipCollection : Form
                 return;
         }
 
-        if (_company + drawningWarship)
+        if (_company + drawningWarship != -1)
         {
             MessageBox.Show("Объект добавлен");
             pictureBox.Image = _company.Show();
@@ -123,7 +123,7 @@ public partial class FormWarshipCollection : Form
         }
 
         int pos = Convert.ToInt32(maskedTextBoxPosition.Text);
-        if (_company - pos)
+        if (_company - pos != null)
         {
             MessageBox.Show("Объект удален");
             pictureBox.Image = _company.Show();