diff --git a/src/app/document/view/[slug]/DocumentViewer.tsx b/src/app/document/view/[slug]/DocumentViewer.tsx
index be9dd41..a092b36 100644
--- a/src/app/document/view/[slug]/DocumentViewer.tsx
+++ b/src/app/document/view/[slug]/DocumentViewer.tsx
@@ -96,11 +96,11 @@ const DocumentViewer = ({ slug }: Readonly<{ slug: string }>) => {
         {citation ? <>{citation}</> : <>eeXiv:{hash}</>}
       </p>
       {doi && (
-  <p className='my-2'>
-    <span className='font-bold'>DOI: </span>
-    {doi}
-  </p>
-)}
+        <p className='my-2'>
+          <span className='font-bold'>DOI: </span>
+          {doi}
+        </p>
+      )}
       <Suspense
         fallback={
           <div className='max-w-sm animate-pulse flex flex-wrap gap-2'>
diff --git a/src/app/utils/hash.ts b/src/app/utils/hash.ts
index 06c992b..246d3a1 100644
--- a/src/app/utils/hash.ts
+++ b/src/app/utils/hash.ts
@@ -1,10 +1,6 @@
 import crypto from 'crypto'
 
 export default function hash(key: string) {
-    // git style hash
-    return crypto
-        .createHash('sha256')
-        .update(key)
-        .digest('hex')
-        .substring(0, 7)
+  // git style hash
+  return crypto.createHash('sha256').update(key).digest('hex').substring(0, 7)
 }