diff --git a/homeassistant/components/wiffi/config_flow.py b/homeassistant/components/wiffi/config_flow.py
index 79f26d82585..5087915181e 100644
--- a/homeassistant/components/wiffi/config_flow.py
+++ b/homeassistant/components/wiffi/config_flow.py
@@ -38,8 +38,7 @@ class WiffiFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
             return self._async_show_form()
 
         # received input from form or configuration.yaml
-        await self.async_set_unique_id(user_input[CONF_PORT])
-        self._abort_if_unique_id_configured()
+        self._async_abort_entries_match(user_input)
 
         try:
             # try to start server to check whether port is in use