diff --git a/README.md b/README.md
index e08252e..5ec2abd 100644
--- a/README.md
+++ b/README.md
@@ -128,17 +128,6 @@ css('normalize.css')
 ```
 Packages from npm will not be namespaced by default.
 
-## Toggle namespaces
-To toggle namespaces for external files or npm packages:
-```js
-const css = require('sheetify')
-
-css('./my-file.css', { global: true })
-```
-Be aware that when you toggle the namespace, the `:host` element matches won't
-work anymore because the class it targets no longer exists. Only use this
-toggle to write styles that are, well, global.
-
 ## Write to separate file on disk
 To write the compiled CSS to a separate file, rather than keep it in the
 bundle use [css-extract][2]:
diff --git a/index.js b/index.js
index 781db02..7e4e0de 100644
--- a/index.js
+++ b/index.js
@@ -61,7 +61,7 @@ function parseCss (src, filename, prefix, options, done) {
   applyTransforms(filename, String(src), xtend(options), function (err, css) {
     if (err) return done(err)
     var p = postcss()
-    if (options.global !== true) p = p.use(cssPrefix('.' + prefix))
+    p = p.use(cssPrefix('.' + prefix))
 
     try {
       css = p.process(css).toString()
diff --git a/package.json b/package.json
index cd9758f..4f4b4fd 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "is-stream": "^1.0.1",
     "map-limit": "0.0.1",
     "postcss": "^5.0.10",
-    "postcss-prefix": "^1.0.3",
+    "postcss-prefix": "^2.0.0",
     "resolve": "^1.1.7",
     "stack-trace": "0.0.9",
     "static-eval": "^0.2.4",
diff --git a/test/fixtures/plugins-expected.css b/test/fixtures/plugins-expected.css
index edce3a2..cf38b0a 100644
--- a/test/fixtures/plugins-expected.css
+++ b/test/fixtures/plugins-expected.css
@@ -1,4 +1,4 @@
-._08548a3e hello, ._08548a3e world {
+._75161010 .hello,._75161010 .world {
     -webkit-transform: translate(0, 0);
             transform: translate(0, 0);
   }
diff --git a/test/fixtures/plugins-source.js b/test/fixtures/plugins-source.js
index 9dce7ea..802f7c8 100644
--- a/test/fixtures/plugins-source.js
+++ b/test/fixtures/plugins-source.js
@@ -1,7 +1,7 @@
 const sf = require('sheetify')
 
 const prefix = sf`
-  hello, world {
+  :host .hello, :host .world {
     transform: translate(0, 0);
   }
 `
diff --git a/test/fixtures/prefix-import-expected.css b/test/fixtures/prefix-import-expected.css
index 531cdfc..b6a937c 100644
--- a/test/fixtures/prefix-import-expected.css
+++ b/test/fixtures/prefix-import-expected.css
@@ -1,3 +1,3 @@
-._0081131d .foo {
+._f918f624 .foo {
   color: blue;
 }
diff --git a/test/fixtures/prefix-import-source.css b/test/fixtures/prefix-import-source.css
index 94ff8d4..5f8d93c 100644
--- a/test/fixtures/prefix-import-source.css
+++ b/test/fixtures/prefix-import-source.css
@@ -1,3 +1,3 @@
-.foo {
+:host .foo {
   color: blue;
 }
diff --git a/test/fixtures/prefix-inline-expected.css b/test/fixtures/prefix-inline-expected.css
index 531cdfc..b6a937c 100644
--- a/test/fixtures/prefix-inline-expected.css
+++ b/test/fixtures/prefix-inline-expected.css
@@ -1,3 +1,3 @@
-._0081131d .foo {
+._f918f624 .foo {
   color: blue;
 }
diff --git a/test/fixtures/prefix-inline-source.js b/test/fixtures/prefix-inline-source.js
index 058ee92..f175ba9 100644
--- a/test/fixtures/prefix-inline-source.js
+++ b/test/fixtures/prefix-inline-source.js
@@ -1,6 +1,6 @@
 const sf = require('sheetify')
 
-const prefix = sf`.foo {
+const prefix = sf`:host .foo {
   color: blue;
 }
 `
diff --git a/test/prefix.js b/test/prefix.js
index 5fa1142..bbfa01b 100644
--- a/test/prefix.js
+++ b/test/prefix.js
@@ -61,7 +61,7 @@ test('prefix', function (t) {
       vm.runInNewContext(src.toString(), c)
 
       function log (msg) {
-        t.equal(msg, '_0081131d', 'echoes prefix')
+        t.equal(msg, '_f918f624', 'echoes prefix')
       }
     }
   })
@@ -94,31 +94,8 @@ test('prefix', function (t) {
       vm.runInNewContext(src.toString(), c)
 
       function log (msg) {
-        t.equal(msg, '_0081131d', 'echoes prefix')
+        t.equal(msg, '_f918f624', 'echoes prefix')
       }
     }
   })
-
-  t.test('should disable prefixing when global:true', function (t) {
-    t.plan(1)
-
-    const expath = path.join(__dirname, 'fixtures/prefix-global-expected.css')
-    const expected = fs.readFileSync(expath, 'utf8').trim()
-
-    const ws = concat(function (buf) {
-      const res = String(buf).trim()
-      t.equal(res, expected, 'css is equal')
-    })
-
-    const bOpts = { browserField: false }
-    const bpath = path.join(__dirname, 'fixtures/prefix-global-source.js')
-    browserify(bpath, bOpts)
-      .transform(transform)
-      .plugin('css-extract', { out: outFn })
-      .bundle()
-
-    function outFn () {
-      return ws
-    }
-  })
 })
diff --git a/transform.js b/transform.js
index 83b91fa..39292ee 100644
--- a/transform.js
+++ b/transform.js
@@ -116,8 +116,6 @@ function transform (filename, options) {
       if (node.type !== 'CallExpression') return
       if (!node.callee || node.callee.type !== 'Identifier') return
       if (node.callee.name !== mname) return
-      const isLocalFile = /^\.{0,2}\//.test(node.arguments[0].value)
-      const localOptions = { global: !isLocalFile }
       try {
         var resolvePath = cssResolve(node.arguments[0].value, {
           basedir: path.dirname(filename)
@@ -127,9 +125,9 @@ function transform (filename, options) {
         return self.emit('error', err)
       }
 
-      const iOpts = node.arguments[1]
-        ? xtend(opts, localOptions, staticEval(node.arguments[1]))
-        : xtend(opts, localOptions)
+      const iOpts = (node.arguments[1])
+        ? xtend(opts, staticEval(node.arguments[1]))
+        : opts
 
       const val = {
         filename: resolvePath,