diff --git a/src/pocketmine/level/format/Chunk.php b/src/pocketmine/level/format/Chunk.php
index c5989a934..3ad1980ce 100644
--- a/src/pocketmine/level/format/Chunk.php
+++ b/src/pocketmine/level/format/Chunk.php
@@ -175,7 +175,7 @@ class Chunk{
 	 * Returns a bitmap of block ID and meta at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 *
 	 * @return int bitmap, (id << 4) | meta
@@ -188,7 +188,7 @@ class Chunk{
 	 * Sets block ID and meta in one call at the specified chunk block coordinates
 	 *
 	 * @param int      $x 0-15
-	 * @param int      $y
+	 * @param int      $y 0-255
 	 * @param int      $z 0-15
 	 * @param int|null $blockId 0-255 if null, does not change
 	 * @param int|null $meta 0-15 if null, does not change
@@ -205,7 +205,7 @@ class Chunk{
 	 * Returns the block ID at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 *
 	 * @return int 0-255
@@ -218,7 +218,7 @@ class Chunk{
 	 * Sets the block ID at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 * @param int $id 0-255
 	 *
@@ -234,7 +234,7 @@ class Chunk{
 	 * Returns the block meta value at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 *
 	 * @return int 0-15
@@ -247,7 +247,7 @@ class Chunk{
 	 * Sets the block meta value at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 * @param int $data 0-15
 	 *
@@ -263,7 +263,7 @@ class Chunk{
 	 * Returns the sky light level at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 *
 	 * @return int 0-15
@@ -276,7 +276,7 @@ class Chunk{
 	 * Sets the sky light level at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 * @param int $level 0-15
 	 *
@@ -303,7 +303,7 @@ class Chunk{
 	 * Returns the block light level at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y 0-15
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 *
 	 * @return int 0-15
@@ -316,7 +316,7 @@ class Chunk{
 	 * Sets the block light level at the specified chunk block coordinates
 	 *
 	 * @param int $x 0-15
-	 * @param int $y 0-15
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 * @param int $level 0-15
 	 *
@@ -653,7 +653,7 @@ class Chunk{
 	 * Returns the tile at the specified chunk block coordinates, or null if no tile exists.
 	 *
 	 * @param int $x 0-15
-	 * @param int $y
+	 * @param int $y 0-255
 	 * @param int $z 0-15
 	 *
 	 * @return Tile|null