diff --git a/en/event-guide.md b/en/event-guide.md
index 1b8387f..5e5c78f 100644
--- a/en/event-guide.md
+++ b/en/event-guide.md
@@ -1,6 +1,7 @@
 ---
 layout: page
 lang: en
+ref: guide
 ---
 
 # Event Guide
diff --git a/guia-del-evento.md b/guia-del-evento.md
index 857795d..10db0a5 100644
--- a/guia-del-evento.md
+++ b/guia-del-evento.md
@@ -1,6 +1,7 @@
 ---
 layout: page
 lang: es
+ref: guide
 ---
 
 # Guía del Evento
diff --git a/pt/guia-do-evento.html b/pt/guia-do-evento.md
similarity index 99%
rename from pt/guia-do-evento.html
rename to pt/guia-do-evento.md
index 8a8a540..efcc7ea 100644
--- a/pt/guia-do-evento.html
+++ b/pt/guia-do-evento.md
@@ -1,6 +1,7 @@
 ---
 layout: page
 lang: pt
+ref: guide
 ---
 
 # Guia do Evento