diff --git a/Include/Python.h b/Include/Python.h
index ffc7e2c..d13003d 100644
--- a/Include/Python.h
+++ b/Include/Python.h
@@ -95,6 +95,8 @@
 #include "import.h"
 #include "bltinmodule.h"
 
+#include "pystate.h"
+
 #include "abstract.h"
 
 #define PyArg_GetInt(v, a)	PyArg_Parse((v), "i", (a))