diff --git a/lib/algorithms/constants.js b/lib/algorithms/constants.js
index 6bdf1b7..0c186a7 100644
--- a/lib/algorithms/constants.js
+++ b/lib/algorithms/constants.js
@@ -36,7 +36,7 @@ module.exports = {
     "A256KW": 256,
     "ECDH-ES+A128KW": 128,
     "ECDH-ES+A192KW": 192,
-    "ECDH-EC+A256KW": 256
+    "ECDH-ES+A256KW": 256
   },
   NONCELENGTH: {
     "A128CBC-HS256": 128,