diff --git a/src/classes/Data.class.php b/src/classes/Data.class.php
index 8ab8f494b..ed9e25f2d 100644
--- a/src/classes/Data.class.php
+++ b/src/classes/Data.class.php
@@ -81,7 +81,7 @@ class Material{
 	);
 	static $unbreakable = array(
 		0 => true,
-		//7 => true,
+		7 => true,
 		8 => true,
 		9 => true,
 		10 => true,