diff --git a/src/matrix/room/timeline/entries/FragmentBoundaryEntry.js b/src/matrix/room/timeline/entries/FragmentBoundaryEntry.js
index 83993315..7af089f9 100644
--- a/src/matrix/room/timeline/entries/FragmentBoundaryEntry.js
+++ b/src/matrix/room/timeline/entries/FragmentBoundaryEntry.js
@@ -55,9 +55,9 @@ export default class FragmentBoundaryEntry extends BaseEntry {
 
     set token(token) {
         if (this.started) {
-            this.fragment.nextToken = token;
-        } else {
             this.fragment.previousToken = token;
+        } else {
+            this.fragment.nextToken = token;
         }
     }