diff --git a/src/at/did_document.gleam b/src/at/did_document.gleam
index 0b453f0..8fae7ce 100644
--- a/src/at/did_document.gleam
+++ b/src/at/did_document.gleam
@@ -216,7 +216,7 @@ pub fn pds(document: DidDocument) -> Result(Uri, Nil) {
     // array, with id ending `"#atproto_pds"`, and type matching `"AtprotoPersonalDataServer"`.
     // The first matching entry in the array should be used, and any others ignored.
     ServiceEndpoint(
-      id: did.Url(fragment: Some("atproto_pds"), ..),
+      id: did.Url(fragment: Some("#atproto_pds"), ..),
       type_: "AtprotoPersonalDataServer",
       service_endpoint:,
     ) ->
@@ -243,7 +243,7 @@ pub fn signing_key(document: DidDocument) -> Result(String, Nil) {
 
   case method {
     EmbeddedVerificationMethod(
-      id: did.Url(fragment: Some("atproto"), ..),
+      id: did.Url(fragment: Some("#atproto"), ..),
       type_: "Multikey",
       public_key_jwk: None,
       public_key_multibase: Some(multibase),