diff --git a/src/components/GridView/index.tsx b/src/components/GridView/index.tsx
index 69f5adb..b7dae92 100644
--- a/src/components/GridView/index.tsx
+++ b/src/components/GridView/index.tsx
@@ -16,7 +16,7 @@ const GridView = ({ settings, images }: GridViewProps) => {
     () =>
       images
         .filter(i => !isVideo(i.url)) // TODO: filter out video for now, since we don't have a good way to display them
-        .sort((a, b) => b.timestamp - a.timestamp), // sort by timestamp descending
+        .sort((a, b) => (b.timestamp && a.timestamp ? b.timestamp - a.timestamp : 0)), // sort by timestamp descending
     [images]
   );
 
diff --git a/src/components/nostrImageDownload.ts b/src/components/nostrImageDownload.ts
index 80f9597..643f101 100644
--- a/src/components/nostrImageDownload.ts
+++ b/src/components/nostrImageDownload.ts
@@ -7,7 +7,7 @@ export type NostrImage = {
   author: string;
   tags: string[];
   content?: string;
-  timestamp: number;
+  timestamp?: number;
   noteId: string;
   type: 'image' | 'video';
 };