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-rw-r--r--phpBB/includes/session.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/phpBB/includes/session.php b/phpBB/includes/session.php
index fa5e6e4c26..ac65604f35 100644
--- a/phpBB/includes/session.php
+++ b/phpBB/includes/session.php
@@ -147,7 +147,7 @@ class session
while ($row = $db->sql_fetchrow($result))
{
- if (preg_match('#' . preg_quote($row['bot_agent'], '#') . '#i', $this->browser))
+ if ($row['bot_agent'] && preg_match('#' . preg_quote($row['bot_agent'], '#') . '#i', $this->browser))
{
$bot = $row['user_id'];
}