diff --git a/testing/matrix-sdk-test/src/sync_builder/joined_room.rs b/testing/matrix-sdk-test/src/sync_builder/joined_room.rs
index e1f0db222..ea8ee29a9 100644
--- a/testing/matrix-sdk-test/src/sync_builder/joined_room.rs
+++ b/testing/matrix-sdk-test/src/sync_builder/joined_room.rs
@@ -8,7 +8,7 @@ use ruma::{
 };
 use serde_json::{from_value as from_json_value, Value as JsonValue};
 
-use super::{EphemeralTestEvent, RoomAccountDataTestEvent, StateTestEvent, TimelineTestEvent};
+use super::{EphemeralTestEvent, RoomAccountDataTestEvent, StateTestEvent};
 use crate::test_json;
 
 pub struct JoinedRoomBuilder {
@@ -26,8 +26,13 @@ impl JoinedRoomBuilder {
     }
 
     /// Add an event to the timeline.
-    pub fn add_timeline_event(mut self, event: TimelineTestEvent) -> Self {
-        self.inner.timeline.events.push(event.into_raw_event());
+    ///
+    /// [`TimelineTestEvent`][super::TimelineTestEvent] can be passed because it
+    /// implements `Into<Raw<AynSyncTimelineEvent>`. The raw event can also be
+    /// created with the [`sync_timeline_event`](crate::sync_timeline_event)
+    /// macro.
+    pub fn add_timeline_event(mut self, event: impl Into<Raw<AnySyncTimelineEvent>>) -> Self {
+        self.inner.timeline.events.push(event.into());
         self
     }
 
diff --git a/testing/matrix-sdk-test/src/sync_builder/left_room.rs b/testing/matrix-sdk-test/src/sync_builder/left_room.rs
index 54bda9595..08c32afa0 100644
--- a/testing/matrix-sdk-test/src/sync_builder/left_room.rs
+++ b/testing/matrix-sdk-test/src/sync_builder/left_room.rs
@@ -5,7 +5,7 @@ use ruma::{
     OwnedRoomId,
 };
 
-use super::{RoomAccountDataTestEvent, StateTestEvent, TimelineTestEvent};
+use super::{RoomAccountDataTestEvent, StateTestEvent};
 use crate::test_json;
 
 pub struct LeftRoomBuilder {
@@ -23,8 +23,13 @@ impl LeftRoomBuilder {
     }
 
     /// Add an event to the timeline.
-    pub fn add_timeline_event(mut self, event: TimelineTestEvent) -> Self {
-        self.inner.timeline.events.push(event.into_raw_event());
+    ///
+    /// [`TimelineTestEvent`][super::TimelineTestEvent] can be passed because it
+    /// implements `Into<Raw<AynSyncTimelineEvent>`. The raw event can also be
+    /// created with the [`sync_timeline_event`](crate::sync_timeline_event)
+    /// macro.
+    pub fn add_timeline_event(mut self, event: impl Into<Raw<AnySyncTimelineEvent>>) -> Self {
+        self.inner.timeline.events.push(event.into());
         self
     }
 
diff --git a/testing/matrix-sdk-test/src/sync_builder/test_event.rs b/testing/matrix-sdk-test/src/sync_builder/test_event.rs
index 79499b462..958a21726 100644
--- a/testing/matrix-sdk-test/src/sync_builder/test_event.rs
+++ b/testing/matrix-sdk-test/src/sync_builder/test_event.rs
@@ -67,10 +67,12 @@ impl TimelineTestEvent {
             Self::Custom(json) => json,
         }
     }
+}
 
+impl From<TimelineTestEvent> for Raw<AnySyncTimelineEvent> {
     /// Get the typed JSON representation of this test event.
-    pub fn into_raw_event(self) -> Raw<AnySyncTimelineEvent> {
-        from_json_value(self.into_json_value()).unwrap()
+    fn from(value: TimelineTestEvent) -> Self {
+        from_json_value(value.into_json_value()).unwrap()
     }
 }