diff --git a/data/flags.json b/data/flags.json
index b386652..5015e66 100644
--- a/data/flags.json
+++ b/data/flags.json
@@ -4,6 +4,7 @@
     "en": "🇬🇧",
     "de": "🇩🇪",
     "es": "🇪🇸",
+    "pt": "🇵🇹",
     "it": "🇮🇹",
     "no": "🇳🇴",
     "fi": "🇫🇮",
diff --git a/layouts/404.html b/layouts/404.html
index 909b70b..4b6e90e 100644
--- a/layouts/404.html
+++ b/layouts/404.html
@@ -1,21 +1,21 @@
-<!--
-Omegamma - Hugo theme for ad5001.eu and related websites
+{{ define "main"}}
+    <!--
+    Omegamma - Hugo theme for ad5001.eu and related websites
 
-Copyright (C) 2021-2022  Ad5001 <mail@ad5001.eu>
+    Copyright (C) 2021-2022  Ad5001 <mail@ad5001.eu>
 
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU Affero General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU Affero General Public License for more details.
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
 
-You should have received a copy of the GNU Affero General Public License
-along with this program.  If not, see <https://www.gnu.org/licenses/>.
--->
-{{ define "main"}}
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+    -->
     {{ partial "section1.html" (dict "Image" "" "Content" ("<h1>404. Page not found</h1><br><a role='button' class='primary' href='/'>Return to main page</a>" | safeHTML)) }}
 {{ end }}