diff --git a/mod/display.php b/mod/display.php
index b5edafc5f..f9c7f9dcf 100644
--- a/mod/display.php
+++ b/mod/display.php
@@ -97,9 +97,9 @@ function display_init(App $a)
 	$profiledata = display_fetchauthor($a, $item);
 
 	if (strstr(Strings::normaliseLink($profiledata["url"]), Strings::normaliseLink(DI::baseUrl()))) {
-		$nickname = str_replace(Strings::normaliseLink(DI::baseUrl())."/profile/", "", Strings::normaliseLink($profiledata["url"]));
+		$nickname = str_replace(Strings::normaliseLink(DI::baseUrl()) . "/profile/", "", Strings::normaliseLink($profiledata["url"]));
 
-		if ($nickname != $a->user["nickname"]) {
+		if (!empty($a->user["nickname"]) && $nickname != $a->user["nickname"]) {
 			$profile = DBA::fetchFirst("SELECT `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
 				INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
 				WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",