diff --git a/pelican/settings.py b/pelican/settings.py
index 98b1357e..c4d2a1ea 100644
--- a/pelican/settings.py
+++ b/pelican/settings.py
@@ -673,9 +673,10 @@ def configure_settings(settings: Settings) -> Settings:
     ]
 
     if any(settings.get(k) for k in feed_keys):
-        if not settings.get("SITEURL"):
+        if not settings.get("SITEURL", settings.get("FEED_DOMAIN")):
             logger.warning(
-                "Feeds generated without SITEURL set properly may not be valid"
+                "Feeds generated without SITEURL or FEED_DOMAIN set properly"
+                " may not be valid"
             )
 
     if "TIMEZONE" not in settings: