diff --git a/src/classes/material/block/solid/QuartzStairs.php b/src/classes/material/block/stairs/QuartzStairs.php
similarity index 92%
rename from src/classes/material/block/solid/QuartzStairs.php
rename to src/classes/material/block/stairs/QuartzStairs.php
index 503b125c1..e5be412c6 100644
--- a/src/classes/material/block/solid/QuartzStairs.php
+++ b/src/classes/material/block/stairs/QuartzStairs.php
@@ -25,7 +25,7 @@ the Free Software Foundation, either version 3 of the License, or
 
 */
 
-class QuartzStairsBlock extends TransparentBlock{
+class QuartzStairsBlock extends StairBlock{
 	public function __construct($meta = 0){
 		parent::__construct(QUARTZ_STAIRS, $meta, "Quartz Stairs");
 	}