diff --git a/tests/data/arista_eos_vrf.json b/tests/data/arista_eos_vrf.json
index 2c82f5e836..2e3624b938 100644
--- a/tests/data/arista_eos_vrf.json
+++ b/tests/data/arista_eos_vrf.json
@@ -30,7 +30,7 @@
                     "features": null,
                     "os": "arista_eos",
                     "type": "network",
-                    "serial": null,
+                    "serial": "serial",
                     "icon": "arista.svg",
                     "location": "<private>"
                 }