diff --git a/lib/crypto/random-browser.js b/lib/crypto/random-browser.js
index e5592547..fbaf0092 100644
--- a/lib/crypto/random-browser.js
+++ b/lib/crypto/random-browser.js
@@ -14,21 +14,21 @@
 const crypto = global.crypto || global.msCrypto || {};
 
 /**
- * Generate some random bytes.
+ * Generate pseudo-random bytes.
  * @param {Number} size
  * @returns {Buffer}
  */
 
-exports.randomBytes = function randomBytes(n) {
-  let data = new Uint8Array(n);
+exports.randomBytes = function randomBytes(size) {
+  let data = new Uint8Array(size);
   crypto.getRandomValues(data);
   return Buffer.from(data.buffer);
 };
 
 if (!crypto.getRandomValues) {
   // Out of luck here. Use bad randomness for now.
-  exports.randomBytes = function randomBytes(n) {
-    let data = Buffer.allocUnsafe(n);
+  exports.randomBytes = function randomBytes(size) {
+    let data = Buffer.allocUnsafe(size);
 
     for (let i = 0; i < data.length; i++)
       data[i] = Math.floor(Math.random() * 256);
diff --git a/lib/crypto/random.js b/lib/crypto/random.js
index 39587794..f2280a9f 100644
--- a/lib/crypto/random.js
+++ b/lib/crypto/random.js
@@ -12,8 +12,11 @@
 
 const crypto = require('crypto');
 
-/*
- * Misc
+/**
+ * Generate pseudo-random bytes.
+ * @function
+ * @param {Number} size
+ * @returns {Buffer}
  */
 
 exports.randomBytes = crypto.randomBytes;