diff --git a/plume-models/src/mentions.rs b/plume-models/src/mentions.rs
index 0d2fd415..7a3d0a87 100644
--- a/plume-models/src/mentions.rs
+++ b/plume-models/src/mentions.rs
@@ -61,14 +61,6 @@ impl Mention {
         }
     }
 
-    pub fn build_activity(conn: &DbConn, ment: &str) -> Result<link::Mention> {
-        let user = User::find_by_fqn(conn, ment)?;
-        let mut mention = link::Mention::default();
-        mention.link_props.set_href_string(user.ap_url)?;
-        mention.link_props.set_name_string(format!("@{}", ment))?;
-        Ok(mention)
-    }
-
     pub fn build_activity07(conn: &DbConn, ment: &str) -> Result<link07::Mention> {
         let user = User::find_by_fqn(conn, ment)?;
         let mut mention = link07::Mention::new();
@@ -218,27 +210,6 @@ mod tests {
     use diesel::Connection;
     use serde_json::{json, to_value};
 
-    #[test]
-    fn build_activity() {
-        let conn = db();
-        conn.test_transaction::<_, Error, _>(|| {
-            let (_posts, users, _blogs) = fill_database(&conn);
-            let user = &users[0];
-            let name = &user.username;
-            let act = Mention::build_activity(&conn, name)?;
-
-            let expected = json!({
-                "href": "https://plu.me/@/admin/",
-                "name": "@admin",
-                "type": "Mention",
-            });
-
-            assert_json_eq!(to_value(act)?, expected);
-
-            Ok(())
-        });
-    }
-
     #[test]
     fn build_activity07() {
         let conn = db();
diff --git a/src/api/posts.rs b/src/api/posts.rs
index a1dcb639..ca76e611 100644
--- a/src/api/posts.rs
+++ b/src/api/posts.rs
@@ -191,9 +191,9 @@ pub fn create(
 
     if post.published {
         for m in mentions.into_iter() {
-            Mention::from_activity(
+            Mention::from_activity07(
                 &conn,
-                &Mention::build_activity(&conn, &m)?,
+                &Mention::build_activity07(&conn, &m)?,
                 post.id,
                 true,
                 true,
diff --git a/src/routes/comments.rs b/src/routes/comments.rs
index e5d571f8..f7018139 100644
--- a/src/routes/comments.rs
+++ b/src/routes/comments.rs
@@ -71,9 +71,9 @@ pub fn create(
 
             // save mentions
             for ment in mentions {
-                Mention::from_activity(
+                Mention::from_activity07(
                     &conn,
-                    &Mention::build_activity(&conn, &ment)
+                    &Mention::build_activity07(&conn, &ment)
                         .expect("comments::create: build mention error"),
                     comm.id,
                     false,
diff --git a/src/routes/posts.rs b/src/routes/posts.rs
index ef76f1cf..61c3594c 100644
--- a/src/routes/posts.rs
+++ b/src/routes/posts.rs
@@ -530,9 +530,10 @@ pub fn create(
 
         if post.published {
             for m in mentions {
-                Mention::from_activity(
+                Mention::from_activity07(
                     &conn,
-                    &Mention::build_activity(&conn, &m).expect("post::create: mention build error"),
+                    &Mention::build_activity07(&conn, &m)
+                        .expect("post::create: mention build error"),
                     post.id,
                     true,
                     true,