diff --git a/qutebrowser/config/configfiles.py b/qutebrowser/config/configfiles.py
index 3a411f658..e1c6f720c 100644
--- a/qutebrowser/config/configfiles.py
+++ b/qutebrowser/config/configfiles.py
@@ -109,7 +109,7 @@ class YamlConfig(QObject):
         return name in self._values
 
     def __iter__(self):
-        return iter(self._values.items())
+        return iter(sorted(self._values.items()))
 
     def _mark_changed(self):
         """Mark the YAML config as changed."""
diff --git a/tests/unit/config/test_configfiles.py b/tests/unit/config/test_configfiles.py
index 99098f26e..baa53408e 100644
--- a/tests/unit/config/test_configfiles.py
+++ b/tests/unit/config/test_configfiles.py
@@ -161,7 +161,7 @@ class TestYaml:
     def test_iter(self, yaml):
         yaml['foo'] = 23
         yaml['bar'] = 42
-        assert list(iter(yaml)) == [('foo', 23), ('bar', 42)]
+        assert list(iter(yaml)) == [('bar', 42), ('foo', 23)]
 
     @pytest.mark.parametrize('old_config', [
         None,