diff --git a/OpenRA.Editor/Form1.cs b/OpenRA.Editor/Form1.cs
index 9f4a62c15b..d7061e5ad7 100755
--- a/OpenRA.Editor/Form1.cs
+++ b/OpenRA.Editor/Form1.cs
@@ -204,6 +204,7 @@ namespace OpenRA.Editor
 				p.Visible = true;
 				p.ResumeLayout();
 			}
+
 			pmMiniMap.Image = Minimap.AddStaticResources(surface1.Map, Minimap.TerrainBitmap(surface1.Map, true));
 		}
 
@@ -315,9 +316,8 @@ namespace OpenRA.Editor
 					var map = new Map(nmd.theater.SelectedItem as string);
 
 					map.Resize((int)nmd.width.Value, (int)nmd.height.Value);
-
-					map.TopLeft = new int2((int)nmd.cordonLeft.Value, (int)nmd.cordonTop.Value);
-					map.BottomRight = new int2((int)nmd.cordonRight.Value, (int)nmd.cordonBottom.Value);
+					map.ResizeCordon((int)nmd.cordonLeft.Value, (int)nmd.cordonTop.Value,
+						(int)nmd.cordonRight.Value, (int)nmd.cordonBottom.Value);
 					map.Players.Add("Neutral", new PlayerReference("Neutral", Rules.Info["world"].Traits.WithInterface<CountryInfo>().First().Race, true, true));
 					NewMap(map);
 				}