diff --git a/include/tlibc/collections/List.h b/include/tlibc/collections/List.h
index fff8134..2095920 100755
--- a/include/tlibc/collections/List.h
+++ b/include/tlibc/collections/List.h
@@ -28,3 +28,4 @@ void List_push_size(List_* ptr, void* values, u32 size);
 bool List_removeAt_size(List_* ptr, u32 i, u32 remove_size);
 
 #define List_len(L, T) ((L)->size / sizeof(T))
+#define List_castTo_Array(l) Array_construct_size(l.data, l.size)