diff --git a/benchmarks/benches/linked_chunk.rs b/benchmarks/benches/linked_chunk.rs
index 29dd354f7..7d206ad46 100644
--- a/benchmarks/benches/linked_chunk.rs
+++ b/benchmarks/benches/linked_chunk.rs
@@ -10,7 +10,7 @@ use matrix_sdk_base::event_cache::{
     store::{DEFAULT_CHUNK_CAPACITY, DynEventCacheStore, IntoEventCacheStore, MemoryStore},
 };
 use matrix_sdk_test::{ALICE, event_factory::EventFactory};
-use ruma::{EventId, room_id};
+use ruma::room_id;
 use tempfile::tempdir;
 use tokio::runtime::Builder;
 
@@ -33,7 +33,7 @@ fn writing(c: &mut Criterion) {
         .build()
         .expect("Failed to create an asynchronous runtime");
 
-    let room_id = room_id!("!foo:bar.baz");
+    let room_id = room_id!("!fabricandofitfaber:bar.baz");
     let linked_chunk_id = LinkedChunkId::Room(room_id);
     let event_factory = EventFactory::new().room(room_id).sender(&ALICE);
 
@@ -66,12 +66,7 @@ fn writing(c: &mut Criterion) {
 
             {
                 let mut events = (0..number_of_events)
-                    .map(|nth| {
-                        event_factory
-                            .text_msg("foo")
-                            .event_id(&EventId::parse(format!("$ev{nth}")).unwrap())
-                            .into_event()
-                    })
+                    .map(|nth| event_factory.text_msg(format!("foo {nth}")).into_event())
                     .peekable();
 
                 let mut gap_nth = 0;
@@ -149,7 +144,7 @@ fn reading(c: &mut Criterion) {
         .build()
         .expect("Failed to create an asynchronous runtime");
 
-    let room_id = room_id!("!foo:bar.baz");
+    let room_id = room_id!("!fabricandofitfaber:bar.baz");
     let linked_chunk_id = LinkedChunkId::Room(room_id);
     let event_factory = EventFactory::new().room(room_id).sender(&ALICE);
 
@@ -177,12 +172,7 @@ fn reading(c: &mut Criterion) {
             // Store some events and gap chunks in the store.
             {
                 let mut events = (0..num_events)
-                    .map(|nth| {
-                        event_factory
-                            .text_msg("foo")
-                            .event_id(&EventId::parse(format!("$ev{nth}")).unwrap())
-                            .into_event()
-                    })
+                    .map(|nth| event_factory.text_msg(format!("foo {nth}")).into_event())
                     .peekable();
 
                 let mut lc =