diff --git a/game/addons/mat_maker_gd/nodes/mm_node.gd b/game/addons/mat_maker_gd/nodes/mm_node.gd
index 2ec21290..4af44039 100644
--- a/game/addons/mat_maker_gd/nodes/mm_node.gd
+++ b/game/addons/mat_maker_gd/nodes/mm_node.gd
@@ -1,4 +1,5 @@
 tool
+class_name MMNode
 extends Resource