diff --git a/.changeset/install-help-arch-flags.md b/.changeset/install-help-arch-flags.md
new file mode 100644
index 0000000000..bc8d0d27d2
--- /dev/null
+++ b/.changeset/install-help-arch-flags.md
@@ -0,0 +1,6 @@
+---
+"@pnpm/installing.commands": patch
+"pnpm": patch
+---
+
+Document the `--cpu`, `--os` and `--libc` flags in the output of `pnpm install --help`. These flags were already supported but were only documented on the website [#12359](https://github.com/pnpm/pnpm/issues/12359).
diff --git a/installing/commands/src/install.ts b/installing/commands/src/install.ts
index 254b9c9fcc..263f3b904c 100644
--- a/installing/commands/src/install.ts
+++ b/installing/commands/src/install.ts
@@ -288,6 +288,18 @@ Install all optionalDependencies even when they don\'t satisfy the current envir
             description: 'Re-runs resolution: useful for printing out peer dependency issues',
             name: '--resolution-only',
           },
+          {
+            description: 'Override CPU architecture of native modules to install. Acceptable values are the same as the `cpu` field of `package.json` (from `process.arch`)',
+            name: '--cpu <arch>',
+          },
+          {
+            description: 'Override OS of native modules to install. Acceptable values are the same as the `os` field of `package.json` (from `process.platform`)',
+            name: '--os <os>',
+          },
+          {
+            description: 'Override libc of native modules to install. Acceptable values are the same as the `libc` field of `package.json`',
+            name: '--libc <libc>',
+          },
           ...UNIVERSAL_OPTIONS,
         ],
       },