diff --git a/doc/manual/src/design/overview.md b/doc/manual/src/design/overview.md
index bd3d935e6..2d3e9226b 100644
--- a/doc/manual/src/design/overview.md
+++ b/doc/manual/src/design/overview.md
@@ -5,7 +5,8 @@ Nix consists of layers that operate fairly independently.
 At the top is the *command line interface*, i.e. the argument parsing of the various Nix executables.
 
 Below that is the Nix *expression language*, in which packages and configurations are written.
-These are the layers which users interact with most.
+
+The command line and expression language are what users interact with most.
 
 Below that is the *store layer*, Nix' machinery to represent tracked files, dependencies, and fully elaborated build plans.
 It is also used for executing those build plans.