diff --git a/flask_sslify.py b/flask_sslify.py
index 779c7b6..8b474ba 100644
--- a/flask_sslify.py
+++ b/flask_sslify.py
@@ -43,7 +43,6 @@ class SSLify(object):
             url = request.url.replace('http://', 'https://')
             r = redirect(url)
 
-            r.headers['Strict-Transport-Security'] = self.hsts_header
             return r
 
     def set_hsts_header(self, response):