diff --git a/src/room/history_visibility.rs b/src/room/history_visibility.rs
index c5da0970..0cf6f63c 100644
--- a/src/room/history_visibility.rs
+++ b/src/room/history_visibility.rs
@@ -18,27 +18,24 @@ ruma_event! {
 
 /// Who can see a room's history.
 #[derive(Clone, Copy, Debug, PartialEq, Deserialize, Serialize)]
+#[serde(rename_all = "snake_case")]
 pub enum HistoryVisibility {
     /// Previous events are accessible to newly joined members from the point they were invited
     /// onwards. Events stop being accessible when the member's state changes to something other
     /// than *invite* or *join*.
-    #[serde(rename = "invited")]
     Invited,
 
     /// Previous events are accessible to newly joined members from the point they joined the room
     /// onwards. Events stop being accessible when the member's state changes to something other
     /// than *join*.
-    #[serde(rename = "joined")]
     Joined,
 
     /// Previous events are always accessible to newly joined members. All events in the room are
     /// accessible, even those sent when the member was not a part of the room.
-    #[serde(rename = "shared")]
     Shared,
 
     /// All events while this is the `HistoryVisibility` value may be shared by any
     /// participating homeserver with anyone, regardless of whether they have ever joined the room.
-    #[serde(rename = "world_readable")]
     WorldReadable,
 
     /// Additional variants may be added in the future and will not be considered breaking changes