diff --git a/src/components/Post.tsx b/src/components/Post.tsx
index e48c17e..91e161e 100644
--- a/src/components/Post.tsx
+++ b/src/components/Post.tsx
@@ -569,7 +569,7 @@ export const AttachmentView = (props: AttachmentViewProps) => {
                 src={`${uploads}/attachments/${props.attachment.id}/${props.attachment.filename}?preview`}
                 alt={props.attachment.filename}
                 title={props.attachment.filename}
-                height={Math.min(160, props.attachment.height)} // max-h-40
+                height={Math.min(160, props.attachment.height ?? 0)} // max-h-40
               />
             </button>
           </div>
diff --git a/src/lib/api/posts.ts b/src/lib/api/posts.ts
index 0300936..7c70e60 100644
--- a/src/lib/api/posts.ts
+++ b/src/lib/api/posts.ts
@@ -9,11 +9,11 @@ import { USER_SCHEMA } from "./users";
 export type Attachment = z.infer<typeof ATTACHMENT_SCHEMA>;
 const ATTACHMENT_SCHEMA = z.object({
   filename: z.string(),
-  height: z.number(),
+  height: z.number().optional(),
   id: z.string(),
   mime: z.string(),
   size: z.number(),
-  width: z.number(),
+  width: z.number().optional(),
 });
 
 type SchemaPost = z.infer<typeof BASE_POST_SCHEMA> & {