diff --git a/install/debian/10/templates/web/nginx/hosting-webmail.stpl b/install/debian/10/templates/web/nginx/hosting-webmail.stpl
index 95c1571c8..e3b36324c 100644
--- a/install/debian/10/templates/web/nginx/hosting-webmail.stpl
+++ b/install/debian/10/templates/web/nginx/hosting-webmail.stpl
@@ -1,5 +1,5 @@
 server {
-    listen      %ip%:%proxy_ssl_port% http2;
+    listen      %ip%:%proxy_ssl_port% ssl http2;
     server_name %domain_idn% %alias_idn%;
     # ssl         on;
     ssl_certificate      %ssl_pem%;