diff --git a/src/domain/session/room/timeline/TilesCollection.js b/src/domain/session/room/timeline/TilesCollection.js
index 4726fdde..8af2879d 100644
--- a/src/domain/session/room/timeline/TilesCollection.js
+++ b/src/domain/session/room/timeline/TilesCollection.js
@@ -88,8 +88,8 @@ export default class TilesCollection extends BaseObservableList {
 
         const newTile = this._tileCreator(entry);
         if (newTile) {
-            prevTile  && prevTile.updateNextSibling(newTile);
-            nextTile  && nextTile.updatePreviousSibling(newTile);
+            prevTile && prevTile.updateNextSibling(newTile);
+            nextTile && nextTile.updatePreviousSibling(newTile);
             this._tiles.splice(tileIdx, 0, newTile);
             this.emitAdd(tileIdx, newTile);
         }