1 files changed, 4 insertions, 1 deletions
diff --git a/lib/internal/crypto/pbkdf2.js b/lib/internal/crypto/pbkdf2.js
index 2fc211a87d..e967e0a794 100644
--- a/lib/internal/crypto/pbkdf2.js
+++ b/lib/internal/crypto/pbkdf2.js
@@ -52,7 +52,10 @@ function _pbkdf2(password, salt, iterations, keylen, digest, callback) {
     throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'iterations', 'number');
 
   if (iterations < 0)
-    throw new errors.RangeError('ERR_OUT_OF_RANGE', 'iterations');
+    throw new errors.RangeError('ERR_OUT_OF_RANGE',
+                                'iterations',
+                                'a non-negative number',
+                                iterations);
 
   if (typeof keylen !== 'number')
     throw new errors.TypeError('ERR_INVALID_ARG_TYPE', 'keylen', 'number');