diff --git a/crypto_generichash.js b/crypto_generichash.js
index b347aff..cf7694a 100644
--- a/crypto_generichash.js
+++ b/crypto_generichash.js
@@ -7,11 +7,16 @@ module.exports.crypto_generichash_BYTES = blake2b.BYTES
 module.exports.crypto_generichash_KEYBYTES_MIN = blake2b.KEYBYTES_MIN
 module.exports.crypto_generichash_KEYBYTES_MAX = blake2b.KEYBYTES_MAX
 module.exports.crypto_generichash_KEYBYTES = blake2b.KEYBYTES
+module.exports.crypto_generichash_WASM_SUPPORTED = blake2b.WASM_SUPPORTED
+module.exports.crypto_generichash_WASM_LOADED = false
+
 
 module.exports.crypto_generichash = function (output, input, key) {
   blake2b(output.length, key).update(input).final(output)
 }
 
+module.exports.crypto_generichash_ready = blake2b.ready
+
 module.exports.crypto_generichash_batch = function (output, inputArray, key) {
   var ctx = blake2b(output.length, key)
   for (var i = 0; i < inputArray.length; i++) {
@@ -24,3 +29,7 @@ module.exports.crypto_generichash_instance = function (key, outlen) {
   if (outlen == null) outlen = module.exports.crypto_generichash_BYTES
   return blake2b(outlen, key)
 }
+
+blake2b.ready(function (err) {
+  if (blake2b.WASM_SUPPORTED) module.exports.crypto_generichash_WASM_LOADED = !err
+})