diff --git a/src/pl/plpython/plpy_cursorobject.c b/src/pl/plpython/plpy_cursorobject.c
index 2ad663cf661..0108471bfe2 100644
--- a/src/pl/plpython/plpy_cursorobject.c
+++ b/src/pl/plpython/plpy_cursorobject.c
@@ -509,6 +509,5 @@ PLy_cursor_close(PyObject *self, PyObject *unused)
 		cursor->closed = true;
 	}
 
-	Py_INCREF(Py_None);
-	return Py_None;
+	Py_RETURN_NONE;
 }
diff --git a/src/pl/plpython/plpy_plpymodule.c b/src/pl/plpython/plpy_plpymodule.c
index feaf2032560..759ad449323 100644
--- a/src/pl/plpython/plpy_plpymodule.c
+++ b/src/pl/plpython/plpy_plpymodule.c
@@ -575,6 +575,5 @@ PLy_output(volatile int level, PyObject *self, PyObject *args, PyObject *kw)
 	/*
 	 * return a legal object so the interpreter will continue on its merry way
 	 */
-	Py_INCREF(Py_None);
-	return Py_None;
+	Py_RETURN_NONE;
 }
diff --git a/src/pl/plpython/plpy_subxactobject.c b/src/pl/plpython/plpy_subxactobject.c
index 9f1caa87d94..331d2b859c0 100644
--- a/src/pl/plpython/plpy_subxactobject.c
+++ b/src/pl/plpython/plpy_subxactobject.c
@@ -212,6 +212,5 @@ PLy_subtransaction_exit(PyObject *self, PyObject *args)
 	CurrentResourceOwner = subxactdata->oldowner;
 	pfree(subxactdata);
 
-	Py_INCREF(Py_None);
-	return Py_None;
+	Py_RETURN_NONE;
 }