diff --git a/lib/client/http-tracker.js b/lib/client/http-tracker.js
index 8b767e2..bf675a6 100644
--- a/lib/client/http-tracker.js
+++ b/lib/client/http-tracker.js
@@ -10,7 +10,7 @@ var inherits = require('inherits')
 var common = require('../common')
 var Tracker = require('./tracker')
 
-var HTTP_SCRAPE_SUPPORT = /\/(announce)[^\/]*$/
+var HTTP_SCRAPE_SUPPORT = /\/(announce)[^/]*$/
 
 inherits(HTTPTracker, Tracker)
 
diff --git a/lib/common-node.js b/lib/common-node.js
index dbc3565..5cc1c0f 100644
--- a/lib/common-node.js
+++ b/lib/common-node.js
@@ -6,7 +6,7 @@
 var Buffer = require('safe-buffer').Buffer
 var querystring = require('querystring')
 
-exports.IPV4_RE = /^[\d\.]+$/
+exports.IPV4_RE = /^[\d.]+$/
 exports.IPV6_RE = /^[\da-fA-F:]+$/
 exports.REMOVE_IPV4_MAPPED_IPV6_RE = /^::ffff:/
 
@@ -57,7 +57,7 @@ exports.querystringStringify = function (obj) {
   var saved = querystring.escape
   querystring.escape = escape // global
   var ret = querystring.stringify(obj)
-  ret = ret.replace(/[@\*\/\+]/g, function (char) {
+  ret = ret.replace(/[@*/+]/g, function (char) {
     // `escape` doesn't encode the characters @*/+ so we do it manually
     return '%' + char.charCodeAt(0).toString(16).toUpperCase()
   })