diff --git a/src/at/did_document.gleam b/src/at/did_document.gleam
index 8fae7ce..43cf81b 100644
--- a/src/at/did_document.gleam
+++ b/src/at/did_document.gleam
@@ -116,7 +116,7 @@ pub fn decoder() -> Decoder(DidDocument) {
     decode.list(did.decoder())
   })
   use also_known_as <- decode.optional_field("alsoKnownAs", [], {
-    decode.list(handle.at_decoder())
+    decode.list(decode.one_of(handle.at_decoder(), [handle.decoder()]))
   })
   use verification_method <- decode.optional_field("verificationMethod", [], {
     decode.list(embedded_verification_method_decoder())