diff --git a/src/world/Level.php b/src/world/Level.php
index 396668e43..30756b231 100644
--- a/src/world/Level.php
+++ b/src/world/Level.php
@@ -351,7 +351,7 @@ class Level{
 		if(!isset($this->level)){
 			return false;
 		}
-		return $this->level->getMiniChunk($X, $Z);
+		return $this->level->getMiniChunk($X, $Y, $Z);
 	}
 	
 	public function setMiniChunk($X, $Y, $Z, $data){
diff --git a/src/world/generator/SuperflatGenerator.php b/src/world/generator/SuperflatGenerator.php
index 592ab80e9..b7235694f 100644
--- a/src/world/generator/SuperflatGenerator.php
+++ b/src/world/generator/SuperflatGenerator.php
@@ -92,7 +92,7 @@ class SuperflatGenerator implements LevelGenerator{
 						$blocks .= chr($this->structure[$y]->getID());
 						$metas .= substr(dechex($this->structure[$y]->getMetadata()), -1);
 					}
-					$this->chunks[$Y] .= $blocks.Utils::hexToStr($metas)."\x00\x00\x00\x00\x00\x00\x00\x00";
+					$this->chunks[$Y] .= $blocks.hex2bin($metas)."\x00\x00\x00\x00\x00\x00\x00\x00";
 				}
 			}
 		}