diff --git a/CHANGELOG.md b/CHANGELOG.md
index d79fb14..66c846a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Support calling `/api/v1/accounts/search` with `resolve` parameter.
 - Created `/api/v1/accounts/aliases/all` API endpoint.
 - Created API endpoint for adding aliases.
+- Populate `alsoKnownAs` property on actor object with declared aliases.
 
 ### Changed
 
diff --git a/src/activitypub/actors/types.rs b/src/activitypub/actors/types.rs
index 493a843..3ae1ce8 100644
--- a/src/activitypub/actors/types.rs
+++ b/src/activitypub/actors/types.rs
@@ -357,6 +357,7 @@ pub fn get_local_actor(
         let attachment = attach_extra_field(field);
         attachments.push(attachment);
     };
+    let aliases = user.profile.aliases.clone().into_actor_ids();
     let actor = Actor {
         context: Some(json!(build_actor_context())),
         id: actor_id.clone(),
@@ -372,7 +373,7 @@ pub fn get_local_actor(
         icon: avatar,
         image: banner,
         summary: user.profile.bio.clone(),
-        also_known_as: None,
+        also_known_as: Some(json!(aliases)),
         attachment: attachments,
         manually_approves_followers: false,
         tag: vec![],