diff --git a/schema/cryptography-defs.json b/schema/cryptography-defs.json
index e3e1728e..7b9d471e 100644
--- a/schema/cryptography-defs.json
+++ b/schema/cryptography-defs.json
@@ -468,6 +468,10 @@
         {
           "pattern": "ChaCha20-Poly1305",
           "primitive": "ae"
+        },
+        {
+          "pattern": "XChaCha20-Poly1305",
+          "primitive": "ae"
         }
       ]
     },