diff --git a/content/topic/firsttopic.md b/content/topic/firsttopic.md
index 917cca8..2f24615 100644
--- a/content/topic/firsttopic.md
+++ b/content/topic/firsttopic.md
@@ -1,6 +1,6 @@
 ---
 title: "First topic"
-has_sessions: ["firstsession.md","secondsession.md"]
+has_sessions: ["firstsession.md","secondsession.md","thirdsession.md"]
 ---
 
 # Main header for the first topic