diff --git a/data/templates/nginx/plain/yunohost_admin.conf b/data/templates/nginx/plain/yunohost_admin.conf
index 11f5d11d2..b1fb0d2ef 100644
--- a/data/templates/nginx/plain/yunohost_admin.conf
+++ b/data/templates/nginx/plain/yunohost_admin.conf
@@ -20,7 +20,7 @@ server {
     ssl_session_timeout 5m;
     ssl_session_cache shared:SSL:50m;
     # As suggested by Mozilla : https://wiki.mozilla.org/Security/Server_Side_TLS and https://en.wikipedia.org/wiki/Curve25519
-    ssl_ecdh_curve X25519:secp521r1:secp384r1:prime256v1;
+    ssl_ecdh_curve secp521r1:secp384r1:prime256v1;
 
     ssl_prefer_server_ciphers on;