diff --git a/doc/5-advanced-topics.md b/doc/5-advanced-topics.md
index fc08c563d..c5a09f19e 100644
--- a/doc/5-advanced-topics.md
+++ b/doc/5-advanced-topics.md
@@ -411,7 +411,7 @@ cluster state and output:
         if (up_count >= down_count) {
           return 0 //same up as down -> UP
         } else {
-          return 1 //something is broken
+          return 2 //something is broken
         }
       }}