diff --git a/ruma-common/CHANGELOG.md b/ruma-common/CHANGELOG.md
index 56b290ff..ccdd4746 100644
--- a/ruma-common/CHANGELOG.md
+++ b/ruma-common/CHANGELOG.md
@@ -1,5 +1,10 @@
 # [unreleased]
 
+Breaking changes:
+
+* Use `ruma_identifiers::MxcUri` instead of `String` for `avatar_url` field in
+  `directory::PublicRoomsChunk`
+
 # 0.3.1
 
 Bug fixes:
diff --git a/ruma-common/src/directory.rs b/ruma-common/src/directory.rs
index 1bb904db..30cb0779 100644
--- a/ruma-common/src/directory.rs
+++ b/ruma-common/src/directory.rs
@@ -3,7 +3,7 @@
 use std::fmt;
 
 use js_int::UInt;
-use ruma_identifiers::{RoomAliasId, RoomId};
+use ruma_identifiers::{MxcUri, RoomAliasId, RoomId};
 use ruma_serde::Outgoing;
 use serde::{
     de::{Error, MapAccess, Visitor},
@@ -55,7 +55,7 @@ pub struct PublicRoomsChunk {
         feature = "compat",
         serde(default, deserialize_with = "ruma_serde::empty_string_as_none")
     )]
-    pub avatar_url: Option<String>,
+    pub avatar_url: Option<MxcUri>,
 }
 
 /// Initial set of mandatory fields of `PublicRoomsChunk`.