diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index 79a718900..1b290908f 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -2709,9 +2709,7 @@ class Level implements ChunkManager, Metadatable{
 				$y = (int) min($max - 2, $v->y);
 				$wasAir = ($chunk->getBlockId($x, $y - 1, $z) === 0);
 				for(; $y > 0; --$y){
-					$b = $chunk->getFullBlock($x, $y, $z);
-					$block = BlockFactory::get($b >> 4, $b & 0x0f);
-					if($this->isFullBlock($block)){
+					if($this->isFullBlock($this->getBlockAt($x, $y, $z))){
 						if($wasAir){
 							$y++;
 							break;
@@ -2722,12 +2720,8 @@ class Level implements ChunkManager, Metadatable{
 				}
 
 				for(; $y >= 0 and $y < $max; ++$y){
-					$b = $chunk->getFullBlock($x, $y + 1, $z);
-					$block = BlockFactory::get($b >> 4, $b & 0x0f);
-					if(!$this->isFullBlock($block)){
-						$b = $chunk->getFullBlock($x, $y, $z);
-						$block = BlockFactory::get($b >> 4, $b & 0x0f);
-						if(!$this->isFullBlock($block)){
+					if(!$this->isFullBlock($this->getBlockAt($x, $y + 1, $z))){
+						if(!$this->isFullBlock($this->getBlockAt($x, $y, $z))){
 							return new Position($spawn->x, $y === (int) $spawn->y ? $spawn->y : $y, $spawn->z, $this);
 						}
 					}else{