diff --git a/packages/player/src/internal/helpers/streaming-session-store.ts b/packages/player/src/internal/helpers/streaming-session-store.ts
index b2ffd79e..26cd21ab 100644
--- a/packages/player/src/internal/helpers/streaming-session-store.ts
+++ b/packages/player/src/internal/helpers/streaming-session-store.ts
@@ -108,7 +108,11 @@ class StreamingSessionStore {
       return;
     }
 
-    mediaProductTransition.playbackContext.actualDuration = updatedDuration;
+    mediaProductTransition.playbackContext = {
+      ...mediaProductTransition.playbackContext,
+      actualDuration: updatedDuration,
+    };
+
     this.saveMediaProductTransition(streamingSessionId, mediaProductTransition);
   }