diff --git a/akanda/rug/test/unit/common/test_linux_ip_lib.py b/akanda/rug/test/unit/common/test_linux_ip_lib.py
index 70b7ad89..fb00eb7b 100644
--- a/akanda/rug/test/unit/common/test_linux_ip_lib.py
+++ b/akanda/rug/test/unit/common/test_linux_ip_lib.py
@@ -32,6 +32,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import collections
 import unittest
 
 import mock
@@ -675,7 +676,7 @@ class TestIpNetnsCommand(TestIPCmdBase):
     def test_execute_env_var_prepend(self):
         self.parent.namespace = 'ns'
         with mock.patch('akanda.rug.common.linux.utils.execute') as execute:
-            env = dict(FOO=1, BAR=2)
+            env = collections.OrderedDict(FOO=1, BAR=2)
             self.netns_cmd.execute(['ip', 'link', 'list'], env)
             execute.assert_called_once_with(
                 ['FOO=1', 'BAR=2', 'ip', 'netns', 'exec', 'ns', 'ip', 'link',