diff --git a/content/topic/fourthtopic.md b/content/topic/fourthtopic.md
index ee91b4e..34c121a 100644
--- a/content/topic/fourthtopic.md
+++ b/content/topic/fourthtopic.md
@@ -1,6 +1,6 @@
 ---
 title: "Fourth topic"
-has_sessions: ["fourthsession.md"]
+has_sessions: ["firstsession.md","secondsession.md","thirdsession.md","fourthsession.md"]
 ---
 
 # The main header of the fourth Topic