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 1bd541c2a9..db90343422 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
@@ -436,8 +436,8 @@ internal class TimelineChunk(private val chunkEntity: ChunkEntity,
                 // Check consistency to item before insertions
                 if (range.startIndex > 0) {
                     val firstInsertion = results[range.startIndex]!!
-                    val lastBeforeInsertion = builtEvents[range.startIndex-1]
-                    if (firstInsertion.displayIndex+1 != lastBeforeInsertion.displayIndex) {
+                    val lastBeforeInsertion = builtEvents[range.startIndex - 1]
+                    if (firstInsertion.displayIndex + 1 != lastBeforeInsertion.displayIndex) {
                         Timber.i("handleDatabaseChangeSet: skip insertion at ${range.startIndex}/${builtEvents.size}, " +
                                 "displayIndex mismatch at ${range.startIndex}: ${firstInsertion.displayIndex} -> ${lastBeforeInsertion.displayIndex}")
                         continue
@@ -445,11 +445,11 @@ internal class TimelineChunk(private val chunkEntity: ChunkEntity,
                 }
                 // Check consistency to item after insertions
                 if (range.startIndex < builtEvents.size) {
-                    val lastInsertion = results[range.startIndex+range.length-1]!!
+                    val lastInsertion = results[range.startIndex + range.length - 1]!!
                     val firstAfterInsertion = builtEvents[range.startIndex]
-                    if (firstAfterInsertion.displayIndex+1 != lastInsertion.displayIndex) {
+                    if (firstAfterInsertion.displayIndex + 1 != lastInsertion.displayIndex) {
                         Timber.i("handleDatabaseChangeSet: skip insertion at ${range.startIndex}/${builtEvents.size}, " +
-                                "displayIndex mismatch at ${range.startIndex+range.length}: " +
+                                "displayIndex mismatch at ${range.startIndex + range.length}: " +
                                 "${firstAfterInsertion.displayIndex} -> ${lastInsertion.displayIndex}")
                         continue
                     }