diff --git a/doc/api/cli.md b/doc/api/cli.md
index 1b14aa45102f92..773db91f6c7cfd 100644
--- a/doc/api/cli.md
+++ b/doc/api/cli.md
@@ -1220,6 +1220,9 @@ Follows [ECMAScript module][] resolution rules.
 Use [`--require`][] to load a [CommonJS module][].
 Modules preloaded with `--require` will run before modules preloaded with `--import`.
 
+Modules are preloaded into the main thread as well as any worker threads,
+forked processes, or clustered processes.
+
 ### `--input-type=type`
 
 <!-- YAML
@@ -1821,6 +1824,9 @@ Only CommonJS modules are supported.
 Use [`--import`][] to preload an [ECMAScript module][].
 Modules preloaded with `--require` will run before modules preloaded with `--import`.
 
+Modules are preloaded into the main thread as well as any worker threads,
+forked processes, or clustered processes.
+
 ### `--run`
 
 <!-- YAML