diff --git a/docs/api/process.md b/docs/api/process.md
index 91e42942ff..78685084d2 100644
--- a/docs/api/process.md
+++ b/docs/api/process.md
@@ -71,7 +71,7 @@ will disable the support for `asar` archives in Node's built-in modules.
 
 ### `process.noDeprecation`
 
-A `boolean` that controls whether or not deprecation warnings are printed to `stderr`.
+A `boolean` (optional) that controls whether or not deprecation warnings are printed to `stderr`.
 Setting this to `true` will silence deprecation warnings. This property is used
 instead of the `--no-deprecation` command line flag.