diff --git a/src/pocketmine/level/generator/PopulationTask.php b/src/pocketmine/level/generator/PopulationTask.php
index 3fb16d228..76f267784 100644
--- a/src/pocketmine/level/generator/PopulationTask.php
+++ b/src/pocketmine/level/generator/PopulationTask.php
@@ -84,11 +84,6 @@ class PopulationTask extends AsyncTask{
 			}
 		}
 
-		if($chunk === null){
-			//TODO error
-			return;
-		}
-
 		$manager->setChunk($chunk->getX(), $chunk->getZ(), $chunk);
 		if(!$chunk->isGenerated()){
 			$generator->generateChunk($chunk->getX(), $chunk->getZ());
@@ -150,11 +145,6 @@ class PopulationTask extends AsyncTask{
 
 			$chunk = Chunk::fastDeserialize($this->chunk);
 
-			if($chunk === null){
-				//TODO error
-				return;
-			}
-
 			for($i = 0; $i < 9; ++$i){
 				if($i === 4){
 					continue;
diff --git a/src/pocketmine/level/light/LightPopulationTask.php b/src/pocketmine/level/light/LightPopulationTask.php
index 1f2a8134a..201d52d41 100644
--- a/src/pocketmine/level/light/LightPopulationTask.php
+++ b/src/pocketmine/level/light/LightPopulationTask.php
@@ -41,10 +41,6 @@ class LightPopulationTask extends AsyncTask{
 	public function onRun(){
 		/** @var Chunk $chunk */
 		$chunk = Chunk::fastDeserialize($this->chunk);
-		if($chunk === null){
-			//TODO error
-			return;
-		}
 
 		$chunk->recalculateHeightMap();
 		$chunk->populateSkyLight();
@@ -58,10 +54,6 @@ class LightPopulationTask extends AsyncTask{
 		if($level !== null){
 			/** @var Chunk $chunk */
 			$chunk = Chunk::fastDeserialize($this->chunk);
-			if($chunk === null){
-				//TODO error
-				return;
-			}
 			$level->generateChunkCallback($chunk->getX(), $chunk->getZ(), $chunk);
 		}
 	}