diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index f2cd819..d0c5b2b 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -182,6 +182,9 @@
 	if (!_PyInt_Init())
 		Py_FatalError("Py_Initialize: can't init ints");
 
+	if (!_PyLong_Init())
+		Py_FatalError("Py_Initialize: can't init longs");
+
 	if (!PyByteArray_Init())
 		Py_FatalError("Py_Initialize: can't init bytearray");