diff --git a/src/cpython.h b/src/cpython.h
index 11e64fa..ef75ea7 100644
--- a/src/cpython.h
+++ b/src/cpython.h
@@ -26,7 +26,7 @@
 
 /* Some python versions don't include this by default. */
 
-#include <longintrepr.h>
+#include <Python.h>
 
 /* These two macros are basically Py_BEGIN_ALLOW_THREADS and
  * Py_BEGIN_ALLOW_THREADS