diff --git a/lib/url.js b/lib/url.js
index 7a28e0064ba..7b4e1b397f6 100644
--- a/lib/url.js
+++ b/lib/url.js
@@ -30,7 +30,7 @@ exports.format = urlFormat;
 
 // define these here so at least they only have to be
 // compiled once on the first module load.
-var protocolPattern = /^([a-z0-9+]+:)/i,
+var protocolPattern = /^([a-z0-9.+-]+:)/i,
     portPattern = /:[0-9]+$/,
     // RFC 2396: characters reserved for delimiting URLs.
     delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'],
diff --git a/test/simple/test-url.js b/test/simple/test-url.js
index c89545d640a..6a847b246da 100644
--- a/test/simple/test-url.js
+++ b/test/simple/test-url.js
@@ -333,6 +333,49 @@ var parseTests = {
     'hash' : '#bar',
     'path': '/path?search=foo'
   },
+  'svn+ssh://foo/bar': {
+    'href': 'svn+ssh://foo/bar',
+    'host': 'foo',
+    'hostname': 'foo',
+    'protocol': 'svn+ssh:',
+    'pathname': '/bar',
+    'path': '/bar',
+    'slashes': true
+  },
+  'dash-test://foo/bar': {
+    'href': 'dash-test://foo/bar',
+    'host': 'foo',
+    'hostname': 'foo',
+    'protocol': 'dash-test:',
+    'pathname': '/bar',
+    'path': '/bar',
+    'slashes': true
+  },
+  'dash-test:foo/bar': {
+    'href': 'dash-test:foo/bar',
+    'host': 'foo',
+    'hostname': 'foo',
+    'protocol': 'dash-test:',
+    'pathname': '/bar',
+    'path': '/bar'
+  },
+  'dot.test://foo/bar': {
+    'href': 'dot.test://foo/bar',
+    'host': 'foo',
+    'hostname': 'foo',
+    'protocol': 'dot.test:',
+    'pathname': '/bar',
+    'path': '/bar',
+    'slashes': true
+  },
+  'dot.test:foo/bar': {
+    'href': 'dot.test:foo/bar',
+    'host': 'foo',
+    'hostname': 'foo',
+    'protocol': 'dot.test:',
+    'pathname': '/bar',
+    'path': '/bar'
+  },
   // IDNA tests
   'http://www.日本語.com/' : {
     'href': 'http://www.xn--wgv71a119e.com/',
@@ -574,6 +617,39 @@ var formatTests = {
     'hostname': 'foo',
     'protocol': 'http:',
     'pathname': '/'
+  },
+  'svn+ssh://foo/bar': {
+    'href': 'svn+ssh://foo/bar',
+    'hostname': 'foo',
+    'protocol': 'svn+ssh:',
+    'pathname': '/bar',
+    'slashes': true
+  },
+  'dash-test://foo/bar': {
+    'href': 'dash-test://foo/bar',
+    'hostname': 'foo',
+    'protocol': 'dash-test:',
+    'pathname': '/bar',
+    'slashes': true
+  },
+  'dash-test:foo/bar': {
+    'href': 'dash-test:foo/bar',
+    'hostname': 'foo',
+    'protocol': 'dash-test:',
+    'pathname': '/bar'
+  },
+  'dot.test://foo/bar': {
+    'href': 'dot.test://foo/bar',
+    'hostname': 'foo',
+    'protocol': 'dot.test:',
+    'pathname': '/bar',
+    'slashes': true
+  },
+  'dot.test:foo/bar': {
+    'href': 'dot.test:foo/bar',
+    'hostname': 'foo',
+    'protocol': 'dot.test:',
+    'pathname': '/bar'
   }
 };
 for (var u in formatTests) {