diff --git a/index.js b/index.js
index b2b6bdd..f827135 100644
--- a/index.js
+++ b/index.js
@@ -65,6 +65,7 @@ function parse (header) {
   for (var i = header.length - 1; i >= 0; i--) {
     switch (header.charCodeAt(i)) {
       case 0x20: /*   */
+      case 0x09: /* \t */
         if (start === end) {
           start = end = i
         }
diff --git a/test/test.js b/test/test.js
index 08e4964..7ac6bb8 100644
--- a/test/test.js
+++ b/test/test.js
@@ -37,6 +37,13 @@ describe('forwarded(req)', function () {
       .expect(200, ['127.0.0.1', '10.0.0.1', '10.0.0.2'], done)
   })
 
+  it('should trim HTAB OWS', function (done) {
+    request(createServer())
+      .get('/')
+      .set('X-Forwarded-For', '\t10.0.0.2\t,\t10.0.0.1\t')
+      .expect(200, ['127.0.0.1', '10.0.0.1', '10.0.0.2'], done)
+  })
+
   describe('socket address', function () {
     it('should begin with socket address', function () {
       var req = createReq('socket', '127.0.0.1')