diff --git a/src/API/BlockAPI.php b/src/API/BlockAPI.php
index 2c8624d72..652f0d24d 100644
--- a/src/API/BlockAPI.php
+++ b/src/API/BlockAPI.php
@@ -64,6 +64,7 @@ class BlockAPI{
 		array(SLAB, 3),
 		array(SLAB, 4),
 		array(SLAB, 5),
+		array(SLAB, 6),
 		array(QUARTZ_BLOCK, 0),
 		array(QUARTZ_BLOCK, 1),
 		array(QUARTZ_BLOCK, 2),
diff --git a/src/material/block/nonfull/Slab.php b/src/material/block/nonfull/Slab.php
index 5171ec3fe..2a6853087 100644
--- a/src/material/block/nonfull/Slab.php
+++ b/src/material/block/nonfull/Slab.php
@@ -35,8 +35,8 @@ class SlabBlock extends TransparentBlock{
 			3 => "Cobblestone",
 			4 => "Brick",
 			5 => "Stone Brick",
-			6 => "Nether Brick",
-			7 => "Quartz",
+			//6 => "Nether Brick",
+			6 => "Quartz",
 		);
 		$this->name = (($this->meta & 0x08) === 0x08 ? "Upper ":"") . $names[$this->meta & 0x07] . " Slab";	
 		if(($this->meta & 0x08) === 0x08){