diff --git a/kuryr_libnetwork/tests/fullstack/test_ipam.py b/kuryr_libnetwork/tests/fullstack/test_ipam.py
index 41686580..24dc8c70 100644
--- a/kuryr_libnetwork/tests/fullstack/test_ipam.py
+++ b/kuryr_libnetwork/tests/fullstack/test_ipam.py
@@ -399,7 +399,7 @@ class IpamTest(kuryr_base.KuryrBaseTest):
                 },
                 {
                     "Subnet": "fe81::/64",
-                    "Gateway": "fe81::1"
+                    "Gateway": "fe81::"
                 },
             ]
         }