diff --git a/lib/internal/validators.js b/lib/internal/validators.js
index f74338ebcb8cef..b5c1477bccd8a5 100644
--- a/lib/internal/validators.js
+++ b/lib/internal/validators.js
@@ -151,8 +151,6 @@ function validateEncoding(data, encoding) {
     throw new ERR_INVALID_ARG_VALUE('encoding', encoding,
                                     `is invalid for data of length ${length}`);
   }
-
-  // TODO(bnoordhuis) Add BASE64 check?
 }
 
 module.exports = {