diff --git a/src/meta/blacklist.js b/src/meta/blacklist.js
index 85aff0d647..33ce959a0b 100644
--- a/src/meta/blacklist.js
+++ b/src/meta/blacklist.js
@@ -141,6 +141,7 @@ Blacklist.validate = function (rules, callback) {
 			cidr.push(rule);
 			return true;
 		}
+		return false;
 	});
 
 	callback(null, {