diff --git a/src/Model/GContact.php b/src/Model/GContact.php
index 0fae0da9d9..b301c0efbc 100644
--- a/src/Model/GContact.php
+++ b/src/Model/GContact.php
@@ -924,7 +924,7 @@ class GContact
 		}
 
 		// These fields are having different names but the same content
-		$gcontact['server_url'] = $contact['baseurl'];
+		$gcontact['server_url'] = defaults($contact, 'baseurl', ''); // "baseurl" can be null, "server_url" not
 		$gcontact['nsfw'] = $contact['sensitive'];
 		$gcontact['hide'] = $contact['unsearchable'];
 		$gcontact['archived'] = $contact['archive'];