diff --git a/src/db/models/group.rs b/src/db/models/group.rs
index 43393ddd..0a69aa98 100644
--- a/src/db/models/group.rs
+++ b/src/db/models/group.rs
@@ -488,27 +488,19 @@ impl GroupUser {
         }}
     }
 
-    pub async fn find_by_collection(collection_uuid: &str, conn: &mut DbConn) -> Vec<Self> {
+    pub async fn get_collection_group_users_uuid(collection_uuid: &str, conn: &mut DbConn) -> HashSet<String> {
         db_run! { conn: {
             groups_users::table
                 .inner_join(collections_groups::table.on(
                     collections_groups::groups_uuid.eq(groups_users::groups_uuid)
                 ))
                 .filter(collections_groups::collections_uuid.eq(collection_uuid))
-                .select(groups_users::all_columns)
-                .load::<GroupUserDb>(conn)
+                .select(groups_users::users_organizations_uuid)
+                .load::<String>(conn)
                 .expect("Error loading group users for collection")
-                .from_db()
         }}
-    }
-
-    /// returns uuid of members of collection groups
-    pub async fn get_collection_group_users_uuid(collection_uuid: &str, conn: &mut DbConn) -> HashSet<String> {
-        GroupUser::find_by_collection(collection_uuid, conn)
-            .await
-            .iter()
-            .map(|u| u.users_organizations_uuid.clone())
-            .collect()
+        .into_iter()
+        .collect()
     }
 
     pub async fn update_user_revision(&self, conn: &mut DbConn) {