diff --git a/cryptfs.cpp b/cryptfs.cpp
index ae25e9a..2ac20e1 100644
--- a/cryptfs.cpp
+++ b/cryptfs.cpp
@@ -316,6 +316,10 @@
 
 constexpr CryptoType supported_crypto_types[] = {
     default_crypto_type,
+    CryptoType()
+        .set_property_name("adiantum")
+        .set_crypto_name("xchacha12,aes-adiantum-plain64")
+        .set_keysize(32),
     // Add new CryptoTypes here.  Order is not important.
 };