diff --git a/index.js b/index.js
index dcefd81..7025ae5 100644
--- a/index.js
+++ b/index.js
@@ -256,6 +256,12 @@ function chunkLength (chunk, encoding) {
 
 function shouldCompress (req, res) {
   var type = res.getHeader('Content-Type')
+  var noCompressionHeader = res.getHeader('x-no-compression')
+
+  if (noCompressionHeader) {
+    debug('%s not compressed', type)
+    return false
+  }
 
   if (type === undefined || !compressible(type)) {
     debug('%s not compressible', type)
diff --git a/test/compression.js b/test/compression.js
index 61debb4..d8de003 100644
--- a/test/compression.js
+++ b/test/compression.js
@@ -554,7 +554,7 @@ describe('compression()', function () {
         .expect(200, 'hello, world', done)
     })
 
-    it('should not set Vary headerh', function (done) {
+    it('should not set Vary header', function (done) {
       var server = createServer({ threshold: 0 }, function (req, res) {
         res.setHeader('Cache-Control', 'no-transform')
         res.setHeader('Content-Type', 'text/plain')
@@ -570,6 +570,36 @@ describe('compression()', function () {
     })
   })
 
+  describe('when "X-No-Compression" request header', function () {
+    it('should not compress response', function (done) {
+      var server = createServer({ threshold: 0 }, function (req, res) {
+        res.setHeader('X-No-Compression', '0')
+        res.setHeader('Content-Type', 'text/plain')
+        res.end('hello, world')
+      })
+
+      request(server)
+        .get('/')
+        .set('Accept-Encoding', 'gzip, br')
+        .expect(shouldNotHaveHeader('Content-Encoding'))
+        .expect(200, 'hello, world', done)
+    })
+
+    it('should not set Vary header', function (done) {
+      var server = createServer({ threshold: 0 }, function (req, res) {
+        res.setHeader('X-No-Compression', '1')
+        res.setHeader('Content-Type', 'text/plain')
+        res.end('hello, world')
+      })
+
+      request(server)
+        .get('/')
+        .set('Accept-Encoding', 'gzip, br')
+        .expect(shouldNotHaveHeader('Vary'))
+        .expect(200, done)
+    })
+  })
+
   describe('.filter', function () {
     it('should be a function', function () {
       assert.strictEqual(typeof compression.filter, 'function')