diff --git a/plume-models/src/posts.rs b/plume-models/src/posts.rs
index 4d0748e0..74ff21d8 100644
--- a/plume-models/src/posts.rs
+++ b/plume-models/src/posts.rs
@@ -255,7 +255,7 @@ impl Post {
         ap_url(&format!(
             "{}/~/{}/{}/",
             CONFIG.base_url,
-            blog.fqn,
+            iri_percent_encode_seg(&blog.fqn),
             iri_percent_encode_seg(slug)
         ))
     }