diff --git a/libraries/eventformatter/impl/src/main/kotlin/io/element/android/libraries/eventformatter/impl/RoomMembershipContentFormatter.kt b/libraries/eventformatter/impl/src/main/kotlin/io/element/android/libraries/eventformatter/impl/RoomMembershipContentFormatter.kt
index b4469fe886..1c58cffd43 100644
--- a/libraries/eventformatter/impl/src/main/kotlin/io/element/android/libraries/eventformatter/impl/RoomMembershipContentFormatter.kt
+++ b/libraries/eventformatter/impl/src/main/kotlin/io/element/android/libraries/eventformatter/impl/RoomMembershipContentFormatter.kt
@@ -38,12 +38,12 @@ class RoomMembershipContentFormatter @Inject constructor(
             MembershipChange.JOINED -> if (memberIsYou) {
                 sp.getString(R.string.state_event_room_join_by_you)
             } else {
-                sp.getString(R.string.state_event_room_join, userId.value)
+                sp.getString(R.string.state_event_room_join, senderDisambiguatedDisplayName)
             }
             MembershipChange.LEFT -> if (memberIsYou) {
                 sp.getString(R.string.state_event_room_leave_by_you)
             } else {
-                sp.getString(R.string.state_event_room_leave, userId.value)
+                sp.getString(R.string.state_event_room_leave, senderDisambiguatedDisplayName)
             }
             MembershipChange.BANNED, MembershipChange.KICKED_AND_BANNED -> if (senderIsYou) {
                 sp.getString(R.string.state_event_room_ban_by_you, userId.value)
@@ -85,7 +85,7 @@ class RoomMembershipContentFormatter @Inject constructor(
             MembershipChange.KNOCKED -> if (memberIsYou) {
                 sp.getString(R.string.state_event_room_knock_by_you)
             } else {
-                sp.getString(R.string.state_event_room_knock, userId.value)
+                sp.getString(R.string.state_event_room_knock, senderDisambiguatedDisplayName)
             }
             MembershipChange.KNOCK_ACCEPTED -> if (senderIsYou) {
                 sp.getString(R.string.state_event_room_knock_accepted_by_you, userId.value)
@@ -95,7 +95,7 @@ class RoomMembershipContentFormatter @Inject constructor(
             MembershipChange.KNOCK_RETRACTED -> if (memberIsYou) {
                 sp.getString(R.string.state_event_room_knock_retracted_by_you)
             } else {
-                sp.getString(R.string.state_event_room_knock_retracted, userId.value)
+                sp.getString(R.string.state_event_room_knock_retracted, senderDisambiguatedDisplayName)
             }
             MembershipChange.KNOCK_DENIED -> if (senderIsYou) {
                 sp.getString(R.string.state_event_room_knock_denied_by_you, userId.value)
diff --git a/libraries/eventformatter/impl/src/test/kotlin/io/element/android/libraries/eventformatter/impl/DefaultRoomLastMessageFormatterTest.kt b/libraries/eventformatter/impl/src/test/kotlin/io/element/android/libraries/eventformatter/impl/DefaultRoomLastMessageFormatterTest.kt
index 8fffaaa28f..f2000442eb 100644
--- a/libraries/eventformatter/impl/src/test/kotlin/io/element/android/libraries/eventformatter/impl/DefaultRoomLastMessageFormatterTest.kt
+++ b/libraries/eventformatter/impl/src/test/kotlin/io/element/android/libraries/eventformatter/impl/DefaultRoomLastMessageFormatterTest.kt
@@ -264,7 +264,7 @@ class DefaultRoomLastMessageFormatterTest {
 
         val someoneJoinedRoomEvent = createRoomEvent(sentByYou = false, senderDisplayName = otherName, content = someoneContent)
         val someoneJoinedRoom = formatter.format(someoneJoinedRoomEvent, false)
-        assertThat(someoneJoinedRoom).isEqualTo("${someoneContent.userId} joined the room")
+        assertThat(someoneJoinedRoom).isEqualTo("$otherName joined the room")
     }
 
     @Test
@@ -280,7 +280,7 @@ class DefaultRoomLastMessageFormatterTest {
 
         val someoneLeftRoomEvent = createRoomEvent(sentByYou = false, senderDisplayName = otherName, content = someoneContent)
         val someoneLeftRoom = formatter.format(someoneLeftRoomEvent, false)
-        assertThat(someoneLeftRoom).isEqualTo("${someoneContent.userId} left the room")
+        assertThat(someoneLeftRoom).isEqualTo("$otherName left the room")
     }
 
     @Test
@@ -421,7 +421,7 @@ class DefaultRoomLastMessageFormatterTest {
 
         val someoneKnockedEvent = createRoomEvent(sentByYou = false, senderDisplayName = otherName, content = someoneContent)
         val someoneKnocked = formatter.format(someoneKnockedEvent, false)
-        assertThat(someoneKnocked).isEqualTo("${someoneContent.userId} requested to join")
+        assertThat(someoneKnocked).isEqualTo("$otherName requested to join")
     }
 
     @Test
@@ -452,7 +452,7 @@ class DefaultRoomLastMessageFormatterTest {
 
         val someoneRetractedKnockEvent = createRoomEvent(sentByYou = false, senderDisplayName = otherName, content = someoneContent)
         val someoneRetractedKnock = formatter.format(someoneRetractedKnockEvent, false)
-        assertThat(someoneRetractedKnock).isEqualTo("${someoneContent.userId} is no longer interested in joining")
+        assertThat(someoneRetractedKnock).isEqualTo("$otherName is no longer interested in joining")
     }
 
     @Test