diff --git a/doc/manual/src/SUMMARY.md b/doc/manual/src/SUMMARY.md
index 80a41f8d7..5f6817674 100644
--- a/doc/manual/src/SUMMARY.md
+++ b/doc/manual/src/SUMMARY.md
@@ -22,9 +22,9 @@
   - [Channels](package-management/channels.md)
   - [Sharing Packages Between Machines](package-management/sharing-packages.md)
     - [Serving a Nix store via HTTP](package-management/binary-cache-substituter.md)
-    - [Copying Closures Via SSH](package-management/copy-closure.md)
+    - [Copying Closures via SSH](package-management/copy-closure.md)
     - [Serving a Nix store via SSH](package-management/ssh-substituter.md)
-    - [Serving a Nix store via AWS S3 or S3-compatible Service](package-management/s3-substituter.md)
+    - [Serving a Nix store via S3](package-management/s3-substituter.md)
 - [Writing Nix Expressions](expressions/writing-nix-expressions.md)
   - [A Simple Nix Expression](expressions/simple-expression.md)
     - [Expression Syntax](expressions/expression-syntax.md)