diff --git a/client/src/announcer/test/mod.rs b/client/src/announcer/test/mod.rs
index 7879e9f..2db80d3 100644
--- a/client/src/announcer/test/mod.rs
+++ b/client/src/announcer/test/mod.rs
@@ -9,24 +9,12 @@ mod t09;
 
 use super::*;
 use crate::testing::DummyScheduleServer;
-use serde_json::Value;
-use std::collections::HashMap;
 use tokio::time::{Duration, Instant};
 
-fn set_and_patch_dummy_events(
-    server: &mut DummyScheduleServer,
-    mut events: Vec<Event>,
-) -> Vec<Event> {
+fn set_and_patch_dummy_events(server: &mut DummyScheduleServer, events: Vec<Event>) -> Vec<Event> {
     // Load the events into the dummy/test server.
     server.set_events(events.clone());
 
-    // Add "type" to extra fields to ensure equality checking works as expected.
-    // In theory this should not be needed, I assume there is some funkyness going on with the fact
-    // this field is renamed by serde.
-    for event in events.iter_mut() {
-        event.extra = HashMap::from([("type".to_string(), Value::String("talk".to_string()))]);
-    }
-
     // Return the patched events for comparisons.
     events
 }
diff --git a/client/src/schedule/event/mod.rs b/client/src/schedule/event/mod.rs
index 5f10ce8..a5cf59e 100644
--- a/client/src/schedule/event/mod.rs
+++ b/client/src/schedule/event/mod.rs
@@ -3,9 +3,8 @@ mod timestamp;
 
 use chrono::{DateTime, FixedOffset};
 use serde::{Deserialize, Serialize};
-use serde_json::Value;
 use serde_with::{serde_as, NoneAsEmptyString};
-use std::{cmp::Ordering, collections::HashMap};
+use std::cmp::Ordering;
 use url::Url;
 
 pub use self::kind::{Kind, Workshop};
@@ -45,9 +44,6 @@ pub struct Event {
     pub is_family_friendly: Option<bool>,
 
     pub link: Url,
-
-    #[serde(flatten)]
-    pub extra: HashMap<String, Value>,
 }
 
 impl Event {
@@ -72,7 +68,6 @@ impl Event {
             may_record: None,
             is_family_friendly: None,
             link: Url::parse("http://example.com").unwrap(),
-            extra: HashMap::default(),
         }
     }