diff --git a/ib002/00-intro-ib002.md b/ib002/00-intro-ib002.md
index 555daf9..12c7981 100644
--- a/ib002/00-intro-ib002.md
+++ b/ib002/00-intro-ib002.md
@@ -1,7 +1,7 @@
 ---
 id: ib002-intro
 title: Introduction
-slug: /intro
+slug: /
 ---
 
 In this part you can find „random“ additional materials I have written over the
diff --git a/ib015/00-intro-ib015.md b/ib015/00-intro-ib015.md
index 1d36af7..0752f79 100644
--- a/ib015/00-intro-ib015.md
+++ b/ib015/00-intro-ib015.md
@@ -1,5 +1,5 @@
 ---
 id: ib015-intro
 title: Introduction
-slug: /intro
+slug: /
 ---
diff --git a/ib110/00-intro-ib110.md b/ib110/00-intro-ib110.md
index 0bdd537..7ba9f61 100644
--- a/ib110/00-intro-ib110.md
+++ b/ib110/00-intro-ib110.md
@@ -1,5 +1,5 @@
 ---
 id: ib110-intro
 title: Introduction
-slug: /intro
+slug: /
 ---
diff --git a/pb071/00-intro-pb071.md b/pb071/00-intro-pb071.md
index 4e04b5b..32fd60c 100644
--- a/pb071/00-intro-pb071.md
+++ b/pb071/00-intro-pb071.md
@@ -1,5 +1,5 @@
 ---
 id: pb071-intro
 title: Introduction
-slug: /intro
+slug: /
 ---
diff --git a/pb161/00-intro-pb161.md b/pb161/00-intro-pb161.md
index 3264b2e..ded563d 100644
--- a/pb161/00-intro-pb161.md
+++ b/pb161/00-intro-pb161.md
@@ -1,5 +1,5 @@
 ---
 id: pb161-intro
 title: Introduction
-slug: /intro
+slug: /
 ---