diff --git a/game/addons/mesh_data_resource_editor/utilities/mesh_decompose.gd b/game/addons/mesh_data_resource_editor/utilities/mesh_decompose.gd
index 2c9d5c43..d92595ef 100644
--- a/game/addons/mesh_data_resource_editor/utilities/mesh_decompose.gd
+++ b/game/addons/mesh_data_resource_editor/utilities/mesh_decompose.gd
@@ -112,7 +112,7 @@ static func get_handle_edge_to_vertex_map(arrays : Array) -> Array:
 						break
 				
 				if !found:
-					vm.append_array(vm1)
+					vm.append(vi)
 			
 			handle_to_vertex_map.append(vm)