diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index a878577..7ec7ed5 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -15,11 +15,11 @@
 #define OFF(x) offsetof(PyFrameObject, x)
 
 static PyMemberDef frame_memberlist[] = {
-	{"f_back",	T_OBJECT,	OFF(f_back),	RO},
-	{"f_code",	T_OBJECT,	OFF(f_code),	RO},
-	{"f_builtins",	T_OBJECT,	OFF(f_builtins),RO},
-	{"f_globals",	T_OBJECT,	OFF(f_globals),	RO},
-	{"f_lasti",	T_INT,		OFF(f_lasti),	RO},
+	{"f_back",	T_OBJECT,	OFF(f_back),	READONLY},
+	{"f_code",	T_OBJECT,	OFF(f_code),	READONLY},
+	{"f_builtins",	T_OBJECT,	OFF(f_builtins),READONLY},
+	{"f_globals",	T_OBJECT,	OFF(f_globals),	READONLY},
+	{"f_lasti",	T_INT,		OFF(f_lasti),	READONLY},
 	{"f_exc_type",	T_OBJECT,	OFF(f_exc_type)},
 	{"f_exc_value",	T_OBJECT,	OFF(f_exc_value)},
 	{"f_exc_traceback", T_OBJECT,	OFF(f_exc_traceback)},
diff --git a/Objects/genobject.c b/Objects/genobject.c
index b0c8054..f7dd9df 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -282,8 +282,8 @@
 
 
 static PyMemberDef gen_memberlist[] = {
-	{"gi_frame",	T_OBJECT, offsetof(PyGenObject, gi_frame),	RO},
-	{"gi_running",	T_INT,    offsetof(PyGenObject, gi_running),	RO},
+	{"gi_frame",	T_OBJECT, offsetof(PyGenObject, gi_frame),	READONLY},
+	{"gi_running",	T_INT,    offsetof(PyGenObject, gi_running),	READONLY},
 	{NULL}	/* Sentinel */
 };