diff --git a/specifyweb/frontend/js_src/lib/components/Attachments/attachments.ts b/specifyweb/frontend/js_src/lib/components/Attachments/attachments.ts
index 849fda5e0f8..8b30bfff2b8 100644
--- a/specifyweb/frontend/js_src/lib/components/Attachments/attachments.ts
+++ b/specifyweb/frontend/js_src/lib/components/Attachments/attachments.ts
@@ -67,6 +67,8 @@ const thumbnailable = new Set([
   'image/gif',
   'image/png',
   'image/tiff',
+  'image/heic',
+  'image/heif',
   'application/pdf',
 ]);