diff --git a/Objects/object.c b/Objects/object.c
index b14e52a..bf0e6d1 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -846,6 +846,17 @@
 	PyTypeObject *tp = Py_TYPE(v);
 	if (tp->tp_hash != NULL)
 		return (*tp->tp_hash)(v);
+	/* To keep to the general practice that inheriting
+	 * solely from object in C code should work without
+	 * an explicit call to PyType_Ready, we implicitly call
+	 * PyType_Ready here and then check the tp_hash slot again
+	 */
+	if (tp->tp_dict == NULL) {
+		if (PyType_Ready(tp) < 0)
+			return -1;
+		if (tp->tp_hash != NULL)
+			return (*tp->tp_hash)(v);
+	}
 	/* Otherwise, the object can't be hashed */
 	return PyObject_HashNotImplemented(v);
 }