diff --git a/src/main/scala/li/cil/oc/common/block/Delegate.scala b/src/main/scala/li/cil/oc/common/block/Delegate.scala
index 3f4899259..f31d973cd 100644
--- a/src/main/scala/li/cil/oc/common/block/Delegate.scala
+++ b/src/main/scala/li/cil/oc/common/block/Delegate.scala
@@ -50,6 +50,8 @@ trait Delegate {
 
   def explosionResistance(entity: Entity): Float = parent.getExplosionResistance(entity)
 
+  def isAir(world: World, x: Int, y: Int, z: Int) = false
+
   def isNormalCube(world: World, x: Int, y: Int, z: Int) = true
 
   def validRotations(world: World, x: Int, y: Int, z: Int) = validRotations_
diff --git a/src/main/scala/li/cil/oc/common/block/Delegator.scala b/src/main/scala/li/cil/oc/common/block/Delegator.scala
index 5a2d3971d..bf96b59d4 100644
--- a/src/main/scala/li/cil/oc/common/block/Delegator.scala
+++ b/src/main/scala/li/cil/oc/common/block/Delegator.scala
@@ -146,6 +146,12 @@ class Delegator[Child <: Delegate](id: Int) extends Block(id, Material.iron) {
       case _ => super.getExplosionResistance(entity, world, x, y, z, explosionX, explosionY, explosionZ)
     }
 
+  override def isAirBlock(world: World, x: Int, y: Int, z: Int) =
+    subBlock(world, x, y, z) match {
+      case Some(subBlock) => subBlock.isAir(world, x, y, z)
+      case _ => super.isAirBlock(world, x, y, z)
+    }
+
   override def isBlockNormalCube(world: World, x: Int, y: Int, z: Int) =
     subBlock(world.getBlockMetadata(x, y, z)) match {
       case Some(subBlock) => subBlock.isNormalCube(world, x, y, z)
diff --git a/src/main/scala/li/cil/oc/common/block/RobotAfterimage.scala b/src/main/scala/li/cil/oc/common/block/RobotAfterimage.scala
index 3aa35897d..d955f7595 100644
--- a/src/main/scala/li/cil/oc/common/block/RobotAfterimage.scala
+++ b/src/main/scala/li/cil/oc/common/block/RobotAfterimage.scala
@@ -39,6 +39,8 @@ class RobotAfterimage(val parent: SpecialDelegator) extends SpecialDelegate {
 
   override def opacity(world: World, x: Int, y: Int, z: Int) = 0
 
+  override def isAir(world: World, x: Int, y: Int, z: Int) = true
+
   override def isNormalCube(world: World, x: Int, y: Int, z: Int) = false
 
   override def isSolid(world: IBlockAccess, x: Int, y: Int, z: Int, side: ForgeDirection) = false
diff --git a/src/main/scala/li/cil/oc/common/tileentity/Robot.scala b/src/main/scala/li/cil/oc/common/tileentity/Robot.scala
index 455e036a5..18f635721 100644
--- a/src/main/scala/li/cil/oc/common/tileentity/Robot.scala
+++ b/src/main/scala/li/cil/oc/common/tileentity/Robot.scala
@@ -171,7 +171,7 @@ class Robot extends traits.Computer with traits.PowerInformation with api.machin
           // If we broke some replaceable block (like grass) play its break sound.
           if (blockId > 0) {
             val block = Block.blocksList(blockId)
-            if (block != null) {
+            if (block != null && !Delegator.subBlock(block, metadata).exists(_ == Blocks.robotAfterimage)) {
               if (FluidRegistry.lookupFluidForBlock(block) == null &&
                 !block.isInstanceOf[BlockFluidBase] &&
                 !block.isInstanceOf[BlockFlowing]) {