diff --git a/doc/api/os.md b/doc/api/os.md
index a02726fb7c2eb1..550ae7659de5f5 100644
--- a/doc/api/os.md
+++ b/doc/api/os.md
@@ -50,8 +50,9 @@ added: v0.5.0
 * Returns: {string}
 
 Returns the operating system CPU architecture for which the Node.js binary was
-compiled. Possible values are `'arm'`, `'arm64'`, `'ia32'`, `'mips'`,
-`'mipsel'`, `'ppc'`, `'ppc64'`, `'riscv64'`, `'s390'`, `'s390x'`, and `'x64'`.
+compiled. Possible values are `'arm'`, `'arm64'`, `'ia32'`, `'loong64'`,
+`'mips'`, `'mipsel'`, `'ppc'`, `'ppc64'`, `'riscv64'`, `'s390'`, `'s390x'`,
+and `'x64'`.
 
 The return value is equivalent to [`process.arch`][].
 
diff --git a/doc/api/process.md b/doc/api/process.md
index 5718c83e4fbcf4..f0ce10fa9f071a 100644
--- a/doc/api/process.md
+++ b/doc/api/process.md
@@ -873,8 +873,8 @@ added: v0.5.0
 * {string}
 
 The operating system CPU architecture for which the Node.js binary was compiled.
-Possible values are: `'arm'`, `'arm64'`, `'ia32'`, `'mips'`,`'mipsel'`, `'ppc'`,
-`'ppc64'`, `'riscv64'`, `'s390'`, `'s390x'`, and `'x64'`.
+Possible values are: `'arm'`, `'arm64'`, `'ia32'`, `'loong64'`, `'mips'`,
+`'mipsel'`, `'ppc'`, `'ppc64'`, `'riscv64'`, `'s390'`, `'s390x'`, and `'x64'`.
 
 ```mjs
 import { arch } from 'node:process';