diff --git a/doc/manual/src/architecture/architecture.md b/doc/manual/src/architecture/architecture.md
index b818b7aa1..77d5ebc2c 100644
--- a/doc/manual/src/architecture/architecture.md
+++ b/doc/manual/src/architecture/architecture.md
@@ -24,7 +24,7 @@ Nix consists of hierarchical [layers](https://en.m.wikipedia.org/wiki/Multitier_
 +-----------------------------------------------------------------+
 ```
 
-At the top is the *command line interface*, translating from invocations of Nix executables to interactions with the underlying layers.
+At the top is the [command line interface](../command-ref/command-ref.md), translating from invocations of Nix executables to interactions with the underlying layers.
 
 Below that is the [Nix expression language](../expressions/expression-language.md), a [purely functional](https://en.m.wikipedia.org/wiki/Purely_functional_programming) configuration language.
 It is used to compose expressions which ultimately evaluate to self-contained *build plans*, made up *build tasks* used to derive *build results* from referenced *build inputs*.