diff --git a/configuration/haproxy.cfg b/configuration/haproxy.cfg
index 7ac61d0..f9fddb6 100644
--- a/configuration/haproxy.cfg
+++ b/configuration/haproxy.cfg
@@ -62,8 +62,8 @@ backend dns-dot
 
 # TCP LB (443)
 frontend 443-in-doh
-	bind 0.0.0.0:443 strict-sni tfo ssl crt /etc/haproxy/certs/doh.domain.pem
-        bind [::]:443 strict-sni tfo ssl crt /etc/haproxy/certs/doh.domain.pem
+	bind 0.0.0.0:443 strict-sni tfo ssl crt /etc/haproxy/certs/doh.domain.pem alpn h2,http/2
+        bind [::]:443 strict-sni tfo ssl crt /etc/haproxy/certs/doh.domain.pem alpn h2,http/2
 
         mode http