diff --git a/src/timelines/MediaAttachmentGrid.tsx b/src/timelines/MediaAttachmentGrid.tsx
index 0fa0b1c..567e67c 100644
--- a/src/timelines/MediaAttachmentGrid.tsx
+++ b/src/timelines/MediaAttachmentGrid.tsx
@@ -89,7 +89,7 @@ const MediaAttachmentGrid: Component<{
           const realHeight = height && height > maxHeight ? maxHeight : height;
           const realWidth =
             width && height && height > maxHeight
-              ? maxHeight / (aspectRatio ?? 1)
+              ? maxHeight * (aspectRatio ?? 1)
               : width;
           const style = () =>
             loaded()