diff --git a/src/engine/objects/Mine.java b/src/engine/objects/Mine.java
index ee2e634b..e1bfa9d2 100644
--- a/src/engine/objects/Mine.java
+++ b/src/engine/objects/Mine.java
@@ -524,6 +524,7 @@ try{
 			return;
 		}
 
+		mineBuilding.setOwner(null);
 		mineBuilding.refresh(false);
 
 		// remove hirelings