diff --git a/makefile b/makefile
index dea1acd..3b1fc37 100644
--- a/makefile
+++ b/makefile
@@ -262,7 +262,7 @@ test:nasal
 	@ ./nasal -t test/mandelbrot.nas
 	@ ./nasal -t test/md5_self.nas
 	@ ./nasal -t -d test/md5compare.nas
-#	@ ./nasal -d test/module_test.nas
+	@ ./nasal -d test/module_test.nas
 	@ ./nasal -e test/nasal_test.nas
 	@ ./nasal -t -d test/occupation.nas 2
 	@ ./nasal -t -d test/pi.nas
diff --git a/module/fib.cpp b/module/fib.cpp
index dcc77ee..8d1d69e 100644
--- a/module/fib.cpp
+++ b/module/fib.cpp
@@ -69,7 +69,7 @@ var create_new_ghost(var* args, usize size, gc* ngc) {
     var res = ngc->alloc(vm_type::vm_ghost);
     res.ghost().set(
         ghost_for_test,
-        ghost_for_test_destructor,
+        nullptr,
         ghost_for_test_gc_marker,
         new ghost_obj
     );