diff --git a/src/config/mod.rs b/src/config/mod.rs
index 378ab929..7cac2ed8 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -59,7 +59,7 @@ pub struct Config {
     pub allow_unstable_room_versions: bool,
     #[serde(default = "default_default_room_version")]
     pub default_room_version: RoomVersionId,
-    #[serde(default)]
+    #[serde(default, flatten)]
     pub well_known: WellKnownConfig,
     #[serde(default = "false_fn")]
     pub allow_jaeger: bool,
@@ -97,7 +97,9 @@ pub struct TlsConfig {
 
 #[derive(Clone, Debug, Deserialize, Default)]
 pub struct WellKnownConfig {
+    #[serde(rename = "well_known_client")]
     pub client: Option<Url>,
+    #[serde(rename = "well_known_server")]
     pub server: Option<OwnedServerName>,
 }