diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 44a85bb..9e20e4a 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -229,7 +229,7 @@
         Py_FatalError("Py_Initialize: can't save _imp to sys.modules");
     }
 
-    value = PyObject_CallMethod(importlib, "_setup", "OO", sysmod, impmod);
+    value = PyObject_CallMethod(importlib, "_install", "OO", sysmod, impmod);
     if (value == NULL) {
         PyErr_Print();
         Py_FatalError("Py_Initialize: importlib install failed");