diff --git a/common/net/ipnet_test.go b/common/net/ipnet_test.go
index 7f662ea6a..137a64838 100644
--- a/common/net/ipnet_test.go
+++ b/common/net/ipnet_test.go
@@ -39,4 +39,5 @@ func TestIPNet(t *testing.T) {
 	assert.Bool(ipNet.Contains(net.ParseIP("1.0.0.1"))).IsFalse()
 	assert.Bool(ipNet.Contains(net.ParseIP("8.8.8.7"))).IsFalse()
 	assert.Bool(ipNet.Contains(net.ParseIP("8.8.8.8"))).IsTrue()
+	assert.Bool(ipNet.Contains(net.ParseIP("2001:cdba::3257:9652"))).IsFalse()
 }