diff --git a/classes/tools.class.php b/classes/tools.class.php
index 7f1c4f59..435dd3a1 100644
--- a/classes/tools.class.php
+++ b/classes/tools.class.php
@@ -285,13 +285,13 @@ public static function update_user_notes($UserID, $AdminComment) {
 	}
 
 	/**
-	* Check if an IP is part of a given CIDR range.
-	* @param string $CheckIP the IP to be looked up
+	* Check if an IP address is part of a given CIDR range.
+	* @param string $CheckIP the IP address to be looked up
 	* @param string $Subnet the CIDR subnet to be checked against
 	*/
 	public static function check_cidr_range($CheckIP, $Subnet) {
 		$IP = ip2long($CheckIP);
-		$CIDR = split('/',$Subnet);
+		$CIDR = split('/', $Subnet);
 		$SubnetIP = ip2long($CIDR[0]);
 		$SubnetMaskBits = 32 - $CIDR[1];