diff --git a/OpenRA.Mods.Common/Orders/PlaceBuildingOrderGenerator.cs b/OpenRA.Mods.Common/Orders/PlaceBuildingOrderGenerator.cs
index f73d529fcc..c939416d9d 100644
--- a/OpenRA.Mods.Common/Orders/PlaceBuildingOrderGenerator.cs
+++ b/OpenRA.Mods.Common/Orders/PlaceBuildingOrderGenerator.cs
@@ -154,7 +154,7 @@ namespace OpenRA.Mods.Common.Orders
 			{
 				var offsetPos = Viewport.LastMousePos;
 				if (variants[variant].Preview != null)
-					offsetPos += variants[variant].Preview.TopLeftScreenOffset;
+					offsetPos = viewport.WorldToViewPx(viewport.ViewToWorldPx(offsetPos) + variants[variant].Preview.TopLeftScreenOffset);
 
 				return viewport.ViewToWorld(offsetPos);
 			}