diff --git a/python3/python_support.c b/python3/python_support.c
index e72d5391..c5bc87ad 100644
--- a/python3/python_support.c
+++ b/python3/python_support.c
@@ -813,13 +813,13 @@ PyAPI_FUNC(PyObject *) PyFile_FromString
 PyCodeObject*
 ada_pyframe_get_code (PyFrameObject* obj)
 {
-   return obj->f_code;
+   return PyFrame_GetCode(obj);;
 }
 
 PyFrameObject*
 ada_pyframe_get_back (PyFrameObject* obj)
 {
-   return obj->f_back;
+   return PyFrame_GetBack(obj);
 }
 
 PyObject*