diff --git a/OpenRA.Game/Traits/Player/FrozenActorLayer.cs b/OpenRA.Game/Traits/Player/FrozenActorLayer.cs
index e7aed4e376..0cae87a5ee 100644
--- a/OpenRA.Game/Traits/Player/FrozenActorLayer.cs
+++ b/OpenRA.Game/Traits/Player/FrozenActorLayer.cs
@@ -209,7 +209,7 @@ namespace OpenRA.Traits
 					maxV = p.V;
 			}
 
-			return Rectangle.FromLTRB(minU, minV, maxU, maxV);
+			return Rectangle.FromLTRB(minU, minV, maxU + 1, maxV + 1);
 		}
 
 		public void Tick(Actor self)