diff --git a/src/Content/Widget/VCard.php b/src/Content/Widget/VCard.php
index 32eb95e434..d5a565f925 100644
--- a/src/Content/Widget/VCard.php
+++ b/src/Content/Widget/VCard.php
@@ -68,7 +68,6 @@ class VCard
 		$follow_link      = '';
 		$unfollow_link    = '';
 		$wallmessage_link = '';
-		$showforum_link   = '';
 
 		$photo   = Contact::getPhoto($contact);
 
@@ -120,8 +119,6 @@ class VCard
 			'$unfollow_link'    => $unfollow_link,
 			'$wallmessage'      => DI::l10n()->t('Message'),
 			'$wallmessage_link' => $wallmessage_link,
-			'$showforum'        => DI::l10n()->t('Show forum'),
-			'$showforum_link'   => $showforum_link,
 			'$mentioning'       => DI::l10n()->t('Mention'),
 			'$post2group'       => DI::l10n()->t('Post to group'),
 		]);
diff --git a/src/Model/Contact.php b/src/Model/Contact.php
index 7256706e0a..0f426529fb 100644
--- a/src/Model/Contact.php
+++ b/src/Model/Contact.php
@@ -1198,7 +1198,11 @@ class Contact
 			$pm_url = 'message/new/' . $contact['id'];
 		}
 
-		$mention_url = 'compose/0?body=@' . $contact['addr'];
+		if (in_array($contact['rel'], [contact::SHARING])) {
+			$mention_url = 'compose/0?body=!' . $contact['addr'];
+		} else {
+			$mention_url = 'compose/0?body=@' . $contact['addr'];
+		}
 		$contact_url = 'contact/' . $contact['id'];
 		$posts_link = 'contact/' . $contact['id'] . '/conversations';
 		$group_link = 'network/group/' . $contact['id'];