diff --git a/src/services/SimulationService.java b/src/services/SimulationService.java
index ee8bfa50..a801a166 100644
--- a/src/services/SimulationService.java
+++ b/src/services/SimulationService.java
@@ -762,6 +762,8 @@ public class SimulationService implements INetworkDispatch {
 		if(object.getAttachment("proposer") != null)
 			object.setAttachment("proposer", null);
 		
+		object.setPvPBitmask(0);
+		
 		//session.suspendWrite();
 		final long objectId = object.getObjectID();