diff --git a/scripts/upgrade b/scripts/upgrade
index 9a7fef2..8249d20 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -217,10 +217,10 @@ if yunohost --output-as plain domain list | grep -q "^$server_name$"
 then
     ynh_backup_if_checksum_is_different --file=/etc/nginx/conf.d/${server_name}.d/server_name.conf
     cp ../conf/server_name.conf /etc/nginx/conf.d/${server_name}.d/server_name.conf
-    ynh_store_file_checksum --file="/etc/nginx/conf.d/__SERVER_NAME__.d/server_name.conf"
+    ynh_replace_string --match_string=__DOMAIN__ --replace_string=$domain --target_file="/etc/nginx/conf.d/${server_name}.d/server_name.conf"
+    ynh_replace_string --match_string=__PORT__ --replace_string=$synapse_tls_port --target_file="/etc/nginx/conf.d/${server_name}.d/server_name.conf"
+    ynh_store_file_checksum --file="/etc/nginx/conf.d/${server_name}.d/server_name.conf"
 fi
-ynh_replace_string --match_string=__DOMAIN__ --replace_string=$domain --target_file="/etc/nginx/conf.d/${server_name}.d/server_name.conf"
-ynh_replace_string --match_string=__PORT__ --replace_string=$synapse_tls_port --target_file="/etc/nginx/conf.d/${server_name}.d/server_name.conf"
 
 #=================================================
 # MIGRATION 2 : MULTINSTANCE SUPPORT