diff --git a/src/world/generator/PopulationTask.php b/src/world/generator/PopulationTask.php
index 2c6f12474..bfe22168b 100644
--- a/src/world/generator/PopulationTask.php
+++ b/src/world/generator/PopulationTask.php
@@ -118,6 +118,10 @@ class PopulationTask extends AsyncTask{
 		$chunk = $manager->getChunk($chunk->getX(), $chunk->getZ());
 		$chunk->setPopulated();
 
+		$chunk->recalculateHeightMap();
+		$chunk->populateSkyLight();
+		$chunk->setLightPopulated();
+
 		$this->chunk = FastChunkSerializer::serialize($chunk);
 
 		foreach($chunks as $i => $c){