diff --git a/Objects/classobject.c b/Objects/classobject.c
index 299ea64..305c07e 100644
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -143,6 +143,9 @@
 	Py_DECREF(op->cl_bases);
 	Py_DECREF(op->cl_dict);
 	Py_XDECREF(op->cl_name);
+	Py_XDECREF(op->cl_getattr);
+	Py_XDECREF(op->cl_setattr);
+	Py_XDECREF(op->cl_delattr);
 	free((ANY *)op);
 }