diff --git a/Include/abstract.h b/Include/abstract.h
index 14510c6..29f091e 100644
--- a/Include/abstract.h
+++ b/Include/abstract.h
@@ -1064,7 +1064,7 @@
        */
 
 #define PySequence_ITEM(o, i)\
-	( o->ob_type->tp_as_sequence->sq_item(o, i) )
+	( Py_Type(o)->tp_as_sequence->sq_item(o, i) )
        /* Assume tp_as_sequence and sq_item exist and that i does not
 	  need to be corrected for a negative index
        */