diff --git a/plume-models/src/tags.rs b/plume-models/src/tags.rs
index 7631358b..c41700c9 100644
--- a/plume-models/src/tags.rs
+++ b/plume-models/src/tags.rs
@@ -165,6 +165,24 @@ mod tests {
         });
     }
 
+    #[test]
+    fn from_activity07() {
+        let conn = &db();
+        conn.test_transaction::<_, Error, _>(|| {
+            let (posts, _users, _blogs) = fill_database(conn);
+            let post_id = posts[0].id;
+            let mut ht = Hashtag07::new();
+            ht.set_href(ap_url(&format!("https://plu.me/tag/a_tag")).parse::<IriString>()?);
+            ht.set_name("a_tag".to_string());
+            let tag = Tag::from_activity07(conn, &ht, post_id, true)?;
+
+            assert_eq!(&tag.tag, "a_tag");
+            assert!(tag.is_hashtag);
+
+            Ok(())
+        });
+    }
+
     #[test]
     fn build_activity() {
         let conn = &db();