diff --git a/src/program/lwaftr/tests/subcommands/config_test.py b/src/program/lwaftr/tests/subcommands/config_test.py
index d5dc9048d5..5c86efcccb 100644
--- a/src/program/lwaftr/tests/subcommands/config_test.py
+++ b/src/program/lwaftr/tests/subcommands/config_test.py
@@ -149,12 +149,12 @@ def test_add(self):
         self.run_cmd(add_args)
         get_args = self.get_cmd_args('get')
         get_args.append(
-            '/softwire-config/binding-table/softwire[ipv4=1.2.3.4][psid=7]')
+            '/softwire-config/binding-table/softwire[ipv4=1.2.3.4][psid=7]'
+            '/b4-ipv6')
         output = self.run_cmd(get_args)
         # run_cmd checks the exit code and fails the test if it is not zero.
-        get_args[-1] += '/b4-ipv6'
         self.assertEqual(
-            output.strip(), b'b4-ipv6 ::1;\nbr-address 2001:db8::;',
+            output.strip(), b'::1',
             '\n'.join(('OUTPUT', str(output, ENC))))
 
     def test_get_state(self):