diff --git a/inc/config.php b/inc/config.php
index 0d66f72d..16c9ee44 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -331,7 +331,7 @@
 	);
 
 	// Minimum time between posts by the same IP address with the same text.
-	/*$config['filters'][] = array(
+	$config['filters'][] = array(
 		'condition' => array(
 			'flood-match' => array('ip', 'body'), // Match IP address and post body
 			'flood-time' => &$config['flood_time_ip'],
@@ -339,7 +339,7 @@
 		),
 		'action' => 'reject',
 		'message' => &$config['error']['flood']
-	);*/
+	);
 
 	// Minimum time between posts with the same text. (Same content, but not always the same IP address.)
 	/*$config['filters'][] = array(