diff --git a/packages/api/src/jobs/ai/create_digest.ts b/packages/api/src/jobs/ai/create_digest.ts
index 8ac0d3169..f85ced5b6 100644
--- a/packages/api/src/jobs/ai/create_digest.ts
+++ b/packages/api/src/jobs/ai/create_digest.ts
@@ -648,7 +648,7 @@ const findThumbnail = async (
   return undefined
 }
 
-export const moveToLibrary = async (user: User, digest: Digest) => {
+export const moveDigestToLibrary = async (user: User, digest: Digest) => {
   const subTitle = digest.title?.slice(AUTHOR.length + 1) ?? ''
   const title = `${AUTHOR}: ${subTitle}`
 
@@ -701,7 +701,7 @@ const sendToChannels = async (
         case 'email':
           return sendEmail(user, digest)
         case 'library':
-          return moveToLibrary(user, digest)
+          return moveDigestToLibrary(user, digest)
         default:
           logger.error('Unknown channel', { channel })
           return
diff --git a/packages/api/src/routers/digest_router.ts b/packages/api/src/routers/digest_router.ts
index ece89eea2..d136e9638 100644
--- a/packages/api/src/routers/digest_router.ts
+++ b/packages/api/src/routers/digest_router.ts
@@ -4,7 +4,7 @@ import { env } from '../env'
 import { TaskState } from '../generated/graphql'
 import {
   CreateDigestJobSchedule,
-  moveToLibrary,
+  moveDigestToLibrary,
 } from '../jobs/ai/create_digest'
 import { getDigest } from '../services/digest'
 import { FeatureName, findGrantedFeatureByName } from '../services/features'
@@ -301,7 +301,7 @@ export function digestRouter() {
         }
 
         // move digest to library
-        await moveToLibrary(feature.user, digest)
+        await moveDigestToLibrary(feature.user, digest)
 
         res.send({
           success: true,
diff --git a/packages/api/src/utils/usernamePolicy.ts b/packages/api/src/utils/usernamePolicy.ts
index d350ef534..557585e8b 100644
--- a/packages/api/src/utils/usernamePolicy.ts
+++ b/packages/api/src/utils/usernamePolicy.ts
@@ -169,6 +169,7 @@ const RESERVED_NAMES = new Set([
   'xmpp',
   'yaml',
   'yml',
+  'digest',
 ])
 
 export const validateUsername = (username: string): boolean => {