diff --git a/src/index.js b/src/index.js
index 824a5fe..47641a4 100644
--- a/src/index.js
+++ b/src/index.js
@@ -5,6 +5,7 @@ const RIGHT = '-->';
 
 const ENCODE = [
   ['&', '&'],
+  ['<', '&lt;'],
   ['>', '&gt;'],
 ];
 
diff --git a/test/escape-test.js b/test/escape-test.js
index a856983..22ad365 100644
--- a/test/escape-test.js
+++ b/test/escape-test.js
@@ -7,7 +7,7 @@ describe('escaping', () => {
   it('escapes', () => {
     const html = serialize('foo', '', { foo: '</script>', bar: '&gt;' });
 
-    assert.include(html, '</script&gt;');
+    assert.include(html, '&lt;/script&gt;');
     assert.include(html, '&amp;gt;');
   });