diff --git a/data/nginx/default.conf.template b/data/nginx/default.conf.template
index c10dd27..7d70fd9 100644
--- a/data/nginx/default.conf.template
+++ b/data/nginx/default.conf.template
@@ -46,8 +46,9 @@ server {
 
 # HTTPS Server
 server {
-	listen ${NGINX_HTTPS_PORT} ssl http2;
-	listen [::]:${NGINX_HTTPS_PORT} ssl http2;
+	listen ${NGINX_HTTPS_PORT} ssl;
+	listen [::]:${NGINX_HTTPS_PORT} ssl;
+	http2 on;
 	server_name ${NGINX_SERVERNAME};
 
 	ssl_certificate /etc/nginx/ssl/certs/sso.base23.de.crt;