diff --git a/common/buildcraft/silicon/ILaserTarget.java b/common/buildcraft/silicon/ILaserTarget.java
index f5ba9973..46a39b60 100644
--- a/common/buildcraft/silicon/ILaserTarget.java
+++ b/common/buildcraft/silicon/ILaserTarget.java
@@ -5,7 +5,7 @@ public interface ILaserTarget {
 
 	void receiveLaserEnergy(float energy);
 
-	boolean isInvalid();
+	boolean isInvalidTarget();
 
 	int getXCoord();
 
diff --git a/common/buildcraft/silicon/TileAdvancedCraftingTable.java b/common/buildcraft/silicon/TileAdvancedCraftingTable.java
index 18012094..c29e4808 100644
--- a/common/buildcraft/silicon/TileAdvancedCraftingTable.java
+++ b/common/buildcraft/silicon/TileAdvancedCraftingTable.java
@@ -525,4 +525,9 @@ public class TileAdvancedCraftingTable extends TileEntity implements IInventory,
 			lastMode = ActionMachineControl.Mode.Off;
 		}
 	}
+
+	@Override
+	public boolean isInvalidTarget() {
+		return isInvalid();
+	}
 }
diff --git a/common/buildcraft/silicon/TileAssemblyTable.java b/common/buildcraft/silicon/TileAssemblyTable.java
index d7212097..dd017f39 100644
--- a/common/buildcraft/silicon/TileAssemblyTable.java
+++ b/common/buildcraft/silicon/TileAssemblyTable.java
@@ -485,4 +485,9 @@ public class TileAssemblyTable extends TileEntity implements IMachine, IInventor
 		// TODO Auto-generated method stub
 		return true;
 	}
+
+	@Override
+	public boolean isInvalidTarget() {
+		return isInvalid();
+	}
 }
diff --git a/common/buildcraft/silicon/TileLaser.java b/common/buildcraft/silicon/TileLaser.java
index 57fc0e7d..1ed51bf7 100644
--- a/common/buildcraft/silicon/TileLaser.java
+++ b/common/buildcraft/silicon/TileLaser.java
@@ -114,7 +114,7 @@ public class TileLaser extends TileBuildCraft implements IPowerReceptor, IAction
 
 	protected boolean isValidTable() {
 
-		if (laserTarget == null || laserTarget.isInvalid() || !laserTarget.hasCurrentWork())
+		if (laserTarget == null || laserTarget.isInvalidTarget() || !laserTarget.hasCurrentWork())
 			return false;
 
 		return true;