Convert return value to boolean.
diff --git a/Modules/gcmodule.c b/Modules/gcmodule.c
index f92358b..caf7499 100644
--- a/Modules/gcmodule.c
+++ b/Modules/gcmodule.c
@@ -845,7 +845,7 @@
 static PyObject *
 gc_isenabled(PyObject *self, PyObject *noargs)
 {
-	return Py_BuildValue("i", enabled);
+	return PyBool_FromLong((long)enabled);
 }
 
 PyDoc_STRVAR(gc_collect__doc__,