diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index 07ba48e..23e4dd0 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -74,4 +74,4 @@
 - [Syndicated Actor Model](./syndicated-actor-model.md)
 - [Protocol specification](./protocol.md)
 - [Breaking Down the System Layer](./system-layer.md)
-- [Building Up a System Layer](./synit-as-system-layer.md)
+<!-- - [Building Up a System Layer](./synit-as-system-layer.md) -->