diff --git a/phpBB/viewonline.php b/phpBB/viewonline.php
index d1838cd69d..8b88cd4f8c 100644
--- a/phpBB/viewonline.php
+++ b/phpBB/viewonline.php
@@ -37,7 +37,7 @@ init_userprefs($userdata);
 //
 // Output page header and load viewonline template
 //
-$page_title = $lang['Who_is_online'];
+$page_title = $lang['Who_is_Online'];
 include($phpbb_root_path . 'includes/page_header.'.$phpEx);
 
 $template->set_filenames(array(
@@ -286,4 +286,4 @@ $template->pparse('body');
 
 include($phpbb_root_path . 'includes/page_tail.'.$phpEx);
 
-?>
\ No newline at end of file
+?>