diff --git a/src/BreCalClient/ShipListDialog.xaml.cs b/src/BreCalClient/ShipListDialog.xaml.cs
index 39bf3f1..e22d814 100644
--- a/src/BreCalClient/ShipListDialog.xaml.cs
+++ b/src/BreCalClient/ShipListDialog.xaml.cs
@@ -47,12 +47,15 @@ namespace BreCalClient
         {
             if (obj is ShipModel shipmodel)
             {
-                if(this.ShipApi != null)
-                    await this.ShipApi.ShipDeleteAsync(shipmodel.Ship.Id);
-                BreCalLists.Ships.Remove(shipmodel); // remove from "selectable" ships
-                shipmodel.Ship.Deleted = true; // set deleted marker on working instance
-                this.dataGridShips.ItemsSource = null;
-                this.dataGridShips.ItemsSource = BreCalLists.AllShips;
+                if (!shipmodel.Ship.Deleted)
+                {
+                    if (this.ShipApi != null)
+                        await this.ShipApi.ShipDeleteAsync(shipmodel.Ship.Id);
+                    BreCalLists.Ships.Remove(shipmodel); // remove from "selectable" ships
+                    shipmodel.Ship.Deleted = true; // set deleted marker on working instance
+                    this.dataGridShips.ItemsSource = null;
+                    this.dataGridShips.ItemsSource = BreCalLists.AllShips;
+                }
             }
         }