diff --git a/Python/pathconfig.c b/Python/pathconfig.c
index 41fc9e2..14dbba7 100644
--- a/Python/pathconfig.c
+++ b/Python/pathconfig.c
@@ -393,7 +393,7 @@
     _PyInitError err;
     _PyCoreConfig config = _PyCoreConfig_INIT;
 
-    err = _PyCoreConfig_Read(&config);
+    err = _PyCoreConfig_Read(&config, NULL);
     if (_Py_INIT_FAILED(err)) {
         goto error;
     }