diff --git a/index.js b/index.js
index b8ccee0..bbd9e30 100644
--- a/index.js
+++ b/index.js
@@ -261,6 +261,8 @@ function normalizeArguments(url, opts) {
 
 	opts.method = opts.method || 'GET';
 
+	opts.method = opts.method.toUpperCase();
+
 	if (opts.hostname === 'unix') {
 		var matches = /(.+)\:(.+)/.exec(opts.path);
 
@@ -320,7 +322,7 @@ helpers.forEach(function (el) {
 			opts = {};
 		}
 
-		return got(url, objectAssign({}, opts, {method: el.toUpperCase()}), cb);
+		return got(url, objectAssign({}, opts, {method: el}), cb);
 	};
 });
 
@@ -339,7 +341,7 @@ helpers.forEach(function (el) {
 			opts = {};
 		}
 
-		return got.stream(url, objectAssign({}, opts, {method: el.toUpperCase()}), cb);
+		return got.stream(url, objectAssign({}, opts, {method: el}), cb);
 	};
 });
 
diff --git a/test/redirects.js b/test/redirects.js
index a723e8b..b023ed7 100644
--- a/test/redirects.js
+++ b/test/redirects.js
@@ -78,6 +78,11 @@ test('redirect only GET and HEAD requests', async t => {
 	}
 });
 
+test('redirects works with lowercase method', async t => {
+	const body = (await got(`${s.url}/relative`, {method: 'head'})).body;
+	t.is(body, '');
+});
+
 test.after('cleanup', async t => {
 	await s.close();
 });