diff --git a/crates/ruma-common/src/directory.rs b/crates/ruma-common/src/directory.rs
index f324f182..2ff30ca5 100644
--- a/crates/ruma-common/src/directory.rs
+++ b/crates/ruma-common/src/directory.rs
@@ -141,11 +141,12 @@ impl Filter<'_> {
 
 /// Information about which networks/protocols from application services on the
 /// homeserver from which to request rooms.
-#[derive(Clone, Debug, PartialEq, Eq, Incoming)]
+#[derive(Clone, Debug, Default, PartialEq, Eq, Incoming)]
 #[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
-#[incoming_derive(Clone, PartialEq, Eq, !Deserialize)]
+#[incoming_derive(Clone, Default, PartialEq, Eq, !Deserialize)]
 pub enum RoomNetwork<'a> {
     /// Return rooms from the Matrix network.
+    #[default]
     Matrix,
 
     /// Return rooms from all the networks/protocols the homeserver knows about.
@@ -155,12 +156,6 @@ pub enum RoomNetwork<'a> {
     ThirdParty(&'a str),
 }
 
-impl<'a> Default for RoomNetwork<'a> {
-    fn default() -> Self {
-        RoomNetwork::Matrix
-    }
-}
-
 /// The rule used for users wishing to join a public room.
 #[doc = include_str!(concat!(env!("CARGO_MANIFEST_DIR"), "/src/doc/string_enum.md"))]
 #[derive(Clone, Debug, Default, PartialEq, Eq, StringEnum)]