diff --git a/src/main/java/com/hbm/blocks/generic/LogicBlock.java b/src/main/java/com/hbm/blocks/generic/LogicBlock.java
index b5f1577b9..e2fe243bd 100644
--- a/src/main/java/com/hbm/blocks/generic/LogicBlock.java
+++ b/src/main/java/com/hbm/blocks/generic/LogicBlock.java
@@ -176,6 +176,7 @@ public class LogicBlock extends BlockContainer {
 		@Override
 		public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity pkt) {
 			this.readFromNBT(pkt.func_148857_g());
+			worldObj.markBlockForUpdate(xCoord,yCoord,zCoord);
 		}
 	}