diff --git a/doc/manual/src/design/overview.md b/doc/manual/src/design/overview.md
index c60121a01..20a3fe653 100644
--- a/doc/manual/src/design/overview.md
+++ b/doc/manual/src/design/overview.md
@@ -19,5 +19,5 @@ Underlying everything is the *Nix store*, a mechanism to keep track of build pla
 It can also execute *build instructions* captured in the build plans, to produce new data.
 It uses the file system as a persistence layer, and a database to keep track of references.
 
-This chapter describes Nix starting at the bottom with the store layer, working its way up to the user-facing components described in the rest of the manual.
+This chapter describes Nix starting at the bottom with the store layer, then working its way up to the user-facing components described in the rest of the manual.