diff --git a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/TimelineChunk.kt b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/TimelineChunk.kt
index 472cda39f8..368979d73e 100644
--- a/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/TimelineChunk.kt
+++ b/matrix-sdk-android/src/main/java/org/matrix/android/sdk/internal/session/room/timeline/TimelineChunk.kt
@@ -447,7 +447,7 @@ internal class TimelineChunk(private val chunkEntity: ChunkEntity,
         for (range in modifications) {
             for (modificationIndex in (range.startIndex until range.startIndex + range.length)) {
                 val updatedEntity = results[modificationIndex] ?: continue
-                val displayIndex = builtEventsIndexes.getOrDefault(updatedEntity.eventId, null)
+                val displayIndex = builtEventsIndexes[updatedEntity.eventId]
                 if (displayIndex == null) {
                     continue
                 }