diff --git a/phpBB/includes/functions_display.php b/phpBB/includes/functions_display.php
index 086bd0532a..cb8f963528 100644
--- a/phpBB/includes/functions_display.php
+++ b/phpBB/includes/functions_display.php
@@ -1051,7 +1051,7 @@ function display_user_activity(&$userdata)
 			$forum_sql
 		GROUP BY forum_id
 		ORDER BY num_posts DESC";
-	$result = $db->sql_query_limit($sql, 1);
+	$result = $db->sql_query_limit($sql, 1, 0, 3600);
 	$active_f_row = $db->sql_fetchrow($result);
 	$db->sql_freeresult($result);
 
@@ -1073,7 +1073,7 @@ function display_user_activity(&$userdata)
 			$forum_sql
 		GROUP BY topic_id
 		ORDER BY num_posts DESC";
-	$result = $db->sql_query_limit($sql, 1);
+	$result = $db->sql_query_limit($sql, 1, 0, 3600);
 	$active_t_row = $db->sql_fetchrow($result);
 	$db->sql_freeresult($result);