diff --git a/src/pocketmine/entity/FallingSand.php b/src/pocketmine/entity/FallingSand.php
index 4fcde0dd1..758cbe577 100644
--- a/src/pocketmine/entity/FallingSand.php
+++ b/src/pocketmine/entity/FallingSand.php
@@ -78,7 +78,9 @@ class FallingSand extends Entity{
 	}
 
 	public function attack($damage, EntityDamageEvent $source){
-
+		if($source->getCause() === EntityDamageEvent::CAUSE_VOID){
+			parent::attack($damage, $source);
+		}
 	}
 
 	public function onUpdate($currentTick){
diff --git a/src/pocketmine/entity/Item.php b/src/pocketmine/entity/Item.php
index 70f398330..0461c7c18 100644
--- a/src/pocketmine/entity/Item.php
+++ b/src/pocketmine/entity/Item.php
@@ -75,6 +75,17 @@ class Item extends Entity{
 		$this->server->getPluginManager()->callEvent(new ItemSpawnEvent($this));
 	}
 
+	public function attack($damage, EntityDamageEvent $source){
+		if(
+			$source->getCause() === EntityDamageEvent::CAUSE_VOID or
+			$source->getCause() === EntityDamageEvent::CAUSE_FIRE_TICK or
+			$source->getCause() === EntityDamageEvent::CAUSE_ENTITY_EXPLOSION or
+			$source->getCause() === EntityDamageEvent::CAUSE_BLOCK_EXPLOSION
+		){
+			parent::attack($damage, $source);
+		}
+	}
+
 	public function onUpdate($currentTick){
 		if($this->closed){
 			return false;
diff --git a/src/pocketmine/entity/PrimedTNT.php b/src/pocketmine/entity/PrimedTNT.php
index ddc43b602..eed361c5a 100644
--- a/src/pocketmine/entity/PrimedTNT.php
+++ b/src/pocketmine/entity/PrimedTNT.php
@@ -47,7 +47,9 @@ class PrimedTNT extends Entity implements Explosive{
 
 
 	public function attack($damage, EntityDamageEvent $source){
-
+		if($source->getCause() === EntityDamageEvent::CAUSE_VOID){
+			parent::attack($damage, $source);
+		}
 	}
 
 	protected function initEntity(){
diff --git a/src/pocketmine/entity/Projectile.php b/src/pocketmine/entity/Projectile.php
index 6c3755624..d37c63c13 100644
--- a/src/pocketmine/entity/Projectile.php
+++ b/src/pocketmine/entity/Projectile.php
@@ -52,9 +52,10 @@ abstract class Projectile extends Entity{
 		parent::__construct($chunk, $nbt);
 	}
 
-
 	public function attack($damage, EntityDamageEvent $source){
-
+		if($source->getCause() === EntityDamageEvent::CAUSE_VOID){
+			parent::attack($damage, $source);
+		}
 	}
 
 	protected function initEntity(){