diff --git a/Include/Python.h b/Include/Python.h
index 7af6b13..9e140a5 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -134,6 +134,7 @@
 #include "compile.h"
 #include "eval.h"
 
+#include "pyctype.h"
 #include "pystrtod.h"
 #include "pystrcmp.h"