diff --git a/mkdocs.yml b/mkdocs.yml
index ec53f430e7891dc832a05ce4194093229990ea05..503b9101cd0ede25e57964e4145c6bcfe40d7cbc 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -10,16 +10,16 @@ copyright: 'Copyright © 2019 Janne Koschinski'
 nav:
   - "Overview": index.md
   - "Usage":
-      - "Upgrade Guide": usage/upgrade_guide.md
+    - "Upgrade Guide": usage/upgrade_guide.md
   - "Protocol":
-      - "Layers":
-          - "Framing": protocol/layers/framing.md
-          - "Message": protocol/layers/message.md
+    - "Layers":
+      - "Framing": protocol/layers/framing.md
+      - "Message": protocol/layers/message.md
     - "Serialization":
-          - "Primitive Types": protocol/serialization/primitive.md
-          - "Compound Types": protocol/serialization/compound.md
-          - "Features": protocol/serialization/features.md
-          - "Handshake": protocol/serialization/handshake.md
+      - "Primitive Types": protocol/serialization/primitive.md
+      - "Compound Types": protocol/serialization/compound.md
+      - "Features": protocol/serialization/features.md
+      - "Handshake": protocol/serialization/handshake.md
 
 extra:
   social: