diff --git a/README.md b/README.md
index 777d2b4..74943fe 100644
--- a/README.md
+++ b/README.md
@@ -48,4 +48,5 @@ logging_config:
       - console
       level: DEBUG
     version: 1
+fallback_domain: "unifi_respondd_fallback"  # optional
 ```
diff --git a/unifi_respondd.yaml.example b/unifi_respondd.yaml.example
index 9fbd069..48dd1dd 100644
--- a/unifi_respondd.yaml.example
+++ b/unifi_respondd.yaml.example
@@ -28,4 +28,5 @@ logging_config:
       handlers:
       - console
       level: DEBUG
-    version: 1
\ No newline at end of file
+    version: 1
+fallback_domain: "unifi_respondd_fallback"  # optional
diff --git a/unifi_respondd/config.py b/unifi_respondd/config.py
index f93cc3f..5801568 100644
--- a/unifi_respondd/config.py
+++ b/unifi_respondd/config.py
@@ -35,6 +35,7 @@ class Config:
     ssid_regex: str
     offloader_mac: Dict[str, str]
     nodelist: str
+    fallback_domain: str
 
     multicast_address: str
     multicast_port: int
@@ -64,6 +65,7 @@ def from_dict(cls, cfg: Dict[str, str]) -> "Config":
             ssid_regex=cfg["ssid_regex"],
             offloader_mac=cfg["offloader_mac"],
             nodelist=cfg["nodelist"],
+            fallback_domain=cfg.get("fallback_domain", "unifi_respondd_fallback"),
             version=cfg["version"],
             ssl_verify=cfg["ssl_verify"],
             multicast_enabled=cfg["multicast_enabled"],
diff --git a/unifi_respondd/unifi_client.py b/unifi_respondd/unifi_client.py
index 52a36f5..cfd46d3 100644
--- a/unifi_respondd/unifi_client.py
+++ b/unifi_respondd/unifi_client.py
@@ -268,9 +268,7 @@ def get_infos():
                             gateway6=offloader.get("gateway6", None),
                             gateway_nexthop=offloader_id,
                             neighbour_macs=neighbour_macs,
-                            domain_code=offloader.get(
-                                "domain", "ffmuc_unifi_respondd_fallback"
-                            ),
+                            domain_code=offloader.get("domain", cfg.fallback_domain),
                         )
                     )
     return aps