diff --git a/plume-models/src/instance.rs b/plume-models/src/instance.rs
index 5400a126..5f8e09af 100644
--- a/plume-models/src/instance.rs
+++ b/plume-models/src/instance.rs
@@ -9,7 +9,7 @@ use crate::{
 use chrono::NaiveDateTime;
 use diesel::{self, result::Error::NotFound, ExpressionMethods, QueryDsl, RunQueryDsl};
 use once_cell::sync::OnceCell;
-use plume_common::utils::md_to_html;
+use plume_common::utils::{md_to_html, iri_percent_encode_seg};
 use std::sync::RwLock;
 
 #[derive(Clone, Identifiable, Queryable)]
@@ -173,8 +173,8 @@ impl Instance {
             "{instance}/{prefix}/{name}/{box_name}",
             instance = self.public_domain,
             prefix = prefix,
-            name = name,
-            box_name = box_name
+            name = iri_percent_encode_seg(name),
+            box_name = iri_percent_encode_seg(box_name)
         ))
     }