diff --git a/include/pocketpy/cffi.h b/include/pocketpy/cffi.h
index a2937b06..a60cb11a 100644
--- a/include/pocketpy/cffi.h
+++ b/include/pocketpy/cffi.h
@@ -9,7 +9,7 @@ namespace pkpy {
 #define PY_CLASS(T, mod, name)                  \
     static Type _type(VM* vm) {                 \
         PK_LOCAL_STATIC const std::pair<StrName, StrName> _path(#mod, #name); \
-        return PK_OBJ_GET(Type, vm->_modules[_path.first]->attr()[_path.second]); \
+        return PK_OBJ_GET(Type, vm->_modules[_path.first]->attr(_path.second)); \
     }                                                                       \
     static void _check_type(VM* vm, PyObject* val){                         \
         if(!vm->isinstance(val, T::_type(vm))){                             \