diff --git a/doc/api/crypto.md b/doc/api/crypto.md
index 1c4e825d4e2..2ee17ae0378 100644
--- a/doc/api/crypto.md
+++ b/doc/api/crypto.md
@@ -913,7 +913,7 @@ recent OpenSSL releases, `openssl list-cipher-algorithms` will display the
 available cipher algorithms.
 
 The `key` is the raw key used by the `algorithm` and `iv` is an
-[initialization vector][]. Both arguments must be `'latin1'` encoded strings or
+[initialization vector][]. Both arguments must be `'utf8'` encoded strings or
 [buffers][`Buffer`].
 
 ### crypto.createCredentials(details)
@@ -968,7 +968,7 @@ recent OpenSSL releases, `openssl list-cipher-algorithms` will display the
 available cipher algorithms.
 
 The `key` is the raw key used by the `algorithm` and `iv` is an
-[initialization vector][]. Both arguments must be `'latin1'` encoded strings or
+[initialization vector][]. Both arguments must be `'utf8'` encoded strings or
 [buffers][`Buffer`].
 
 ### crypto.createDiffieHellman(prime[, prime_encoding][, generator][, generator_encoding])