diff --git a/lang/main.c b/lang/main.c
index 2e13c68..09b203c 100644
--- a/lang/main.c
+++ b/lang/main.c
@@ -11,7 +11,7 @@
 static void test_number(VmState state) {
 	Object numA = number_create(5);
 	Object numB = number_create(3);
-	vm_stack_push(state, NULL);
+	vm_stack_push(state, object_none());
 	vm_stack_push(state, numB);
 	numB = object_none();
 	vm_call(state, numA, "Add", 2);