diff --git a/plume-models/src/reshares.rs b/plume-models/src/reshares.rs
index 05973f89..663fdc8d 100644
--- a/plume-models/src/reshares.rs
+++ b/plume-models/src/reshares.rs
@@ -2,9 +2,9 @@ use crate::{
     db_conn::DbConn, instance::Instance, notifications::*, posts::Post, schema::reshares,
     timeline::*, users::User, Connection, Error, Result, CONFIG,
 };
-use activitypub::activity::{Announce, Undo};
+use activitypub::activity::Announce;
 use activitystreams::{
-    activity::{ActorAndObjectRef, Announce as Announce07, Undo as Undo07},
+    activity::{ActorAndObjectRef, Announce as Announce07, Undo},
     base::AnyBase,
     iri_string::types::IriString,
     prelude::*,
@@ -113,23 +113,8 @@ impl Reshare {
         Ok(())
     }
 
-    pub fn build_undo(&self, conn: &Connection) -> Result<Undo> {
-        let mut act = Undo::default();
-        act.undo_props
-            .set_actor_link(User::get(conn, self.user_id)?.into_id())?;
-        act.undo_props.set_object_object(self.to_activity(conn)?)?;
-        act.object_props
-            .set_id_string(format!("{}#delete", self.ap_url))?;
-        act.object_props
-            .set_to_link_vec(vec![Id::new(PUBLIC_VISIBILITY.to_string())])?;
-        act.object_props
-            .set_cc_link_vec(vec![Id::new(self.get_user(conn)?.followers_endpoint)])?;
-
-        Ok(act)
-    }
-
-    pub fn build_undo07(&self, conn: &Connection) -> Result<Undo07> {
-        let mut act = Undo07::new(
+    pub fn build_undo07(&self, conn: &Connection) -> Result<Undo> {
+        let mut act = Undo::new(
             User::get(conn, self.user_id)?.ap_url.parse::<IriString>()?,
             AnyBase::from_extended(self.to_activity07(conn)?)?,
         );
@@ -214,7 +199,7 @@ impl FromId<DbConn> for Reshare {
     }
 }
 
-impl AsObject<User, Undo07, &DbConn> for Reshare {
+impl AsObject<User, Undo, &DbConn> for Reshare {
     type Error = Error;
     type Output = ();
 
@@ -301,37 +286,6 @@ mod test {
         });
     }
 
-    #[test]
-    fn build_undo() {
-        let conn = db();
-        conn.test_transaction::<_, Error, _>(|| {
-            let (posts, _users, _blogs) = fill_database(&conn);
-            let post = &posts[0];
-            let user = &post.get_authors(&conn)?[0];
-            let reshare = Reshare::insert(&*conn, NewReshare::new(post, user))?;
-            let act = reshare.build_undo(&*conn)?;
-
-            let expected = json!({
-                "actor": "https://plu.me/@/admin/",
-                "cc": ["https://plu.me/@/admin/followers"],
-                "id": "https://plu.me/@/admin/reshare/https://plu.me/~/BlogName/testing#delete",
-                "object": {
-                    "actor": "https://plu.me/@/admin/",
-                    "cc": ["https://plu.me/@/admin/followers"],
-                    "id": "https://plu.me/@/admin/reshare/https://plu.me/~/BlogName/testing",
-                    "object": "https://plu.me/~/BlogName/testing",
-                    "to": ["https://www.w3.org/ns/activitystreams#Public"],
-                    "type": "Announce"
-                },
-                "to": ["https://www.w3.org/ns/activitystreams#Public"],
-                "type": "Undo",
-            });
-            assert_json_eq!(to_value(act)?, expected);
-
-            Ok(())
-        });
-    }
-
     #[test]
     fn build_undo07() {
         let conn = db();
diff --git a/src/routes/reshares.rs b/src/routes/reshares.rs
index b6d11c8a..8010b846 100644
--- a/src/routes/reshares.rs
+++ b/src/routes/reshares.rs
@@ -3,7 +3,7 @@ use rocket_i18n::I18n;
 
 use crate::routes::errors::ErrorPage;
 use crate::utils::requires_login;
-use plume_common::activity_pub::broadcast;
+use plume_common::activity_pub::{broadcast, broadcast07};
 use plume_models::{
     blogs::Blog, db_conn::DbConn, inbox::inbox, posts::Post, reshares::*, timeline::*, users::User,
     Error, PlumeRocket, CONFIG,
@@ -33,7 +33,7 @@ pub fn create(
             .execute(move || broadcast(&user, act, dest, CONFIG.proxy().cloned()));
     } else {
         let reshare = Reshare::find_by_user_on_post(&conn, user.id, post.id)?;
-        let delete_act = reshare.build_undo(&conn)?;
+        let delete_act = reshare.build_undo07(&conn)?;
         inbox(
             &conn,
             serde_json::to_value(&delete_act).map_err(Error::from)?,
@@ -42,7 +42,7 @@ pub fn create(
         let dest = User::one_by_instance(&conn)?;
         rockets
             .worker
-            .execute(move || broadcast(&user, delete_act, dest, CONFIG.proxy().cloned()));
+            .execute(move || broadcast07(&user, delete_act, dest, CONFIG.proxy().cloned()));
     }
 
     Ok(Redirect::to(uri!(