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1 files changed, 2 insertions, 0 deletions
diff --git a/doc/api/util.md b/doc/api/util.md
index 0efa9461ab..c9681d1c2b 100644
--- a/doc/api/util.md
+++ b/doc/api/util.md
@@ -332,6 +332,8 @@ Inherit the prototype methods from one [constructor][] into another. The
prototype of `constructor` will be set to a new object created from
`superConstructor`.
+This mainly adds some input validation on top of
+`Object.setPrototypeOf(constructor.prototype, superConstructor.prototype)`.
As an additional convenience, `superConstructor` will be accessible
through the `constructor.super_` property.