diff --git a/py/misc.h b/py/misc.h
index 86ac2ec9a1..5c1cc2f7a8 100644
--- a/py/misc.h
+++ b/py/misc.h
@@ -26,6 +26,8 @@
 #ifndef MICROPY_INCLUDED_PY_MISC_H
 #define MICROPY_INCLUDED_PY_MISC_H
 
+#include "py/mpconfig.h"
+
 // a mini library of useful types and functions
 
 /** types *******************************************************/