diff --git a/Meta/Lagom/Contrib/MacPDF/LagomPDFView.mm b/Meta/Lagom/Contrib/MacPDF/LagomPDFView.mm
index 75ff0a019f..0355a5d181 100644
--- a/Meta/Lagom/Contrib/MacPDF/LagomPDFView.mm
+++ b/Meta/Lagom/Contrib/MacPDF/LagomPDFView.mm
@@ -164,6 +164,7 @@ static NSBitmapImageRep* ns_from_gfx(NonnullRefPtr<Gfx::Bitmap> bitmap_p)
         _page_index = min(max(0, page_index), _doc->get_page_count() - 1);
         NSLog(@"encodeRestorableStateWithCoder restored %d", _page_index);
         [self invalidateCachedBitmap];
+        [_delegate pageChanged];
     }
 }