diff --git a/Include/structmember.h b/Include/structmember.h
index 9d19dff..1dd763b 100644
--- a/Include/structmember.h
+++ b/Include/structmember.h
@@ -92,8 +92,8 @@
 #define READONLY	1
 #define RO		READONLY		/* Shorthand */
 
-PyObject *PyMember_Get Py_PROTO((char *, struct memberlist *, char *));
-int PyMember_Set Py_PROTO((char *, struct memberlist *, char *, PyObject *));
+DL_IMPORT(PyObject *) PyMember_Get Py_PROTO((char *, struct memberlist *, char *));
+DL_IMPORT(int) PyMember_Set Py_PROTO((char *, struct memberlist *, char *, PyObject *));
 
 #ifdef __cplusplus
 }