diff --git a/routlin/maintenance.py b/routlin/maintenance.py
index c2d1caa..0a84d9b 100644
--- a/routlin/maintenance.py
+++ b/routlin/maintenance.py
@@ -583,7 +583,7 @@ def refresh_arp_cache(cfg):
             idx = parts.index('lladdr')
             mac = parts[idx + 1].lower()
             if mac not in best or used_secs < best[mac][0]:
-                best[mac] = (used_secs, {'ip': parts[0], 'state': state})
+                best[mac] = (used_secs, {'ip': parts[0], 'state': 'REACHABLE'})
         ARP_CACHE_FILE.write_text(json.dumps({m: e for m, (_, e) in best.items()}))
     except Exception as exc:
         print(f"WARNING: Could not refresh ARP cache: {exc}")