--- libprelude-5.1.1/bindings/python/_prelude.cxx	2019-07-12 07:19:49.365476420 +0200
+++ libprelude-5.1.1/bindings/python/_prelude.cxx	2019-07-12 07:20:02.458213034 +0200
@@ -3132,7 +3132,7 @@
 
 SWIGINTERN void
 SwigPyStaticVar_dealloc(PyDescrObject *descr) {
-  _PyObject_GC_UNTRACK(descr);
+  PyObject_GC_UnTrack(descr);
   Py_XDECREF(PyDescr_TYPE(descr));
   Py_XDECREF(PyDescr_NAME(descr));
   PyObject_GC_Del(descr);