diff --git a/src/classes/Data.class.php b/src/classes/Data.class.php
index 191522243..0737dce7f 100644
--- a/src/classes/Data.class.php
+++ b/src/classes/Data.class.php
@@ -104,6 +104,7 @@ class Material{
 		38 => true,
 		39 => true,
 		40 => true,
+		44 => true,
 		46 => true,
 		50 => true,
 		51 => true,