diff --git a/OpenRA.Mods.Common/Traits/Buildings/Building.cs b/OpenRA.Mods.Common/Traits/Buildings/Building.cs
index cd339b44ad..55ab552366 100644
--- a/OpenRA.Mods.Common/Traits/Buildings/Building.cs
+++ b/OpenRA.Mods.Common/Traits/Buildings/Building.cs
@@ -199,7 +199,7 @@ namespace OpenRA.Mods.Common.Traits
 				return;
 
 			BuildComplete = true;
-			Locked = false;
+			Unlock();
 
 			foreach (var notify in self.TraitsImplementing<INotifyBuildComplete>())
 				notify.BuildingComplete(self);