diff --git a/content/theses/metaphysika/_index.md b/content/theses/metaphysika/_index.md
index 969819c..64f40b4 100644
--- a/content/theses/metaphysika/_index.md
+++ b/content/theses/metaphysika/_index.md
@@ -1,6 +1,7 @@
 ---
 title: "metaphysica"
 weight: 1
+bookFlatSection: true
 ---
 
 # metaphysica
diff --git a/content/theses/metaphysika/on free will/_index.md b/content/theses/metaphysika/on free will/_index.md
index 874dc69..1f274cf 100644
--- a/content/theses/metaphysika/on free will/_index.md	
+++ b/content/theses/metaphysika/on free will/_index.md	
@@ -1,6 +1,7 @@
 ---
 title: "on free will"
 weight: 2
+bookCollapseSection: true
 ---
 
 <h1>on free will</h1>
diff --git a/content/theses/metaphysika/on logic/_index.md b/content/theses/metaphysika/on logic/_index.md
index a15627a..7855f43 100644
--- a/content/theses/metaphysika/on logic/_index.md	
+++ b/content/theses/metaphysika/on logic/_index.md	
@@ -1,6 +1,7 @@
 ---
 title: "on logic"
 weight: 1
+bookCollapseSection: true
 ---
 
 # on logic