diff --git a/src/Model/Group.php b/src/Model/Group.php
index f48dd5043..28af7b045 100644
--- a/src/Model/Group.php
+++ b/src/Model/Group.php
@@ -40,7 +40,7 @@ class Group extends BaseObject
 				// was restricted to this group may now be seen by the new group members.
 				$group = dba::selectFirst('group', ['deleted'], ['id' => $gid]);
 				if (DBM::is_result($group) && $group['deleted']) {
-					dba::update('group', ['deleted' => 0], ['gid' => $gid]);
+					dba::update('group', ['deleted' => 0], ['id' => $gid]);
 					notice(L10n::t('A deleted group with this name was revived. Existing item permissions <strong>may</strong> apply to this group and any future members. If this is not what you intended, please create another group with a different name.') . EOL);
 				}
 				return true;
@@ -138,7 +138,7 @@ class Group extends BaseObject
 			return false;
 		}
 
-		$group = dba::selectFirst('group', ['uid'], ['gid' => $gid]);
+		$group = dba::selectFirst('group', ['uid'], ['id' => $gid]);
 		if (!DBM::is_result($group)) {
 			return false;
 		}