diff --git a/app/provision/index.php b/app/provision/index.php
index e55d0034e9..67910a2bb0 100644
--- a/app/provision/index.php
+++ b/app/provision/index.php
@@ -309,13 +309,15 @@ include "resources/classes/template.php";
 	unset ($prep_statement);
 
 //check to see if the IP address is in the CIDR range
-	function check_cidr ($cidr,$ip_address) {
-		list ($subnet, $mask) = explode ('/', $cidr);
-		return ( ip2long ($ip_address) & ~((1 << (32 - $mask)) - 1) ) == ip2long ($subnet);
-	}
-	if (!check_cidr($provision["cidr"], $_SERVER['REMOTE_ADDR'])) {
-		echo "access denied";
-		exit;
+	if (strlen($provision["cidr"]) > 0) {
+		function check_cidr ($cidr,$ip_address) {
+			list ($subnet, $mask) = explode ('/', $cidr);
+			return ( ip2long ($ip_address) & ~((1 << (32 - $mask)) - 1) ) == ip2long ($subnet);
+		}
+		if (!check_cidr($provision["cidr"], $_SERVER['REMOTE_ADDR'])) {
+			echo "access denied";
+			exit;
+		}
 	}
 
 //if the domain name directory exists then only use templates from it