2 files changed, 6 insertions, 4 deletions

diff --git a/src/mailman/rest/root.py b/src/mailman/rest/root.py
index bc5bace08..366dc3d08 100644
--- a/src/mailman/rest/root.py
+++ b/src/mailman/rest/root.py
@@ -132,14 +132,14 @@ class SystemConfiguration:
 @public
 class Pipelines:
     def on_get(self, request, response):
-        resource = dict(pipelines=list(config.pipelines.keys()))
+        resource = dict(pipelines=sorted(config.pipelines))
         okay(response, etag(resource))
 
 
 @public
 class Chains:
     def on_get(self, request, response):
-        resource = dict(chains=list(config.chains.keys()))
+        resource = dict(chains=sorted(config.chains))
         okay(response, etag(resource))
 
 
diff --git a/src/mailman/rest/tests/test_root.py b/src/mailman/rest/tests/test_root.py
index 26041b9e6..164f27f91 100644
--- a/src/mailman/rest/tests/test_root.py
+++ b/src/mailman/rest/tests/test_root.py
@@ -64,7 +64,8 @@ class TestRoot(unittest.TestCase):
         self.assertEqual(cm.exception.code, 404)
 
     def test_system_pipelines_are_exposed(self):
-        call_api('http://localhost:9001/3.0/system/pipelines')
+        json, response = call_api('http://localhost:9001/3.0/system/pipelines')
+        self.assertEqual(json['pipelines'], sorted(config.pipelines))
 
     def test_system_pipelines_are_read_only(self):
         with self.assertRaises(HTTPError) as cm:
@@ -79,7 +80,8 @@ class TestRoot(unittest.TestCase):
         self.assertEqual(cm.exception.code, 405)
 
     def test_system_chains_are_exposed(self):
-        call_api('http://localhost:9001/3.0/system/chains')
+        json, response = call_api('http://localhost:9001/3.0/system/chains')
+        self.assertEqual(json['chains'], sorted(config.chains))
 
     def test_system_chains_are_read_only(self):
         with self.assertRaises(HTTPError) as cm: