diff --git a/src/frontend/apps/lti_site/apps/deposit/api/useDepositedFileMetadata/index.ts b/src/frontend/apps/lti_site/apps/deposit/api/useDepositedFileMetadata/index.ts
index 32973f3266..50ceda1c93 100644
--- a/src/frontend/apps/lti_site/apps/deposit/api/useDepositedFileMetadata/index.ts
+++ b/src/frontend/apps/lti_site/apps/deposit/api/useDepositedFileMetadata/index.ts
@@ -5,7 +5,7 @@ import { DepositedFileMetadata } from 'apps/deposit/types/metadata';
 
 export const useDepositedFileMetadata = (
   locale: string,
-  parentID: string,
+  fileDepositoryId: string,
   queryConfig?: UseQueryOptions<
     DepositedFileMetadata,
     'depositedfiles',
@@ -13,7 +13,7 @@ export const useDepositedFileMetadata = (
     string[]
   >,
 ) => {
-  const key = [`filedepositories/${parentID}/depositedfiles`, locale];
+  const key = [`filedepositories/${fileDepositoryId}/depositedfiles`, locale];
   return useQuery<
     DepositedFileMetadata,
     'depositedfiles',
diff --git a/src/frontend/apps/lti_site/data/queries/index.tsx b/src/frontend/apps/lti_site/data/queries/index.tsx
index 6af7dd8d6a..b4a0411962 100644
--- a/src/frontend/apps/lti_site/data/queries/index.tsx
+++ b/src/frontend/apps/lti_site/data/queries/index.tsx
@@ -127,7 +127,7 @@ export const useThumbnail = (
   videoId: string,
   queryConfig?: UseQueryOptions<Thumbnail, 'thumbnails', Thumbnail>,
 ) => {
-  const key = ['videos', videoId, `thumbnails/${thumbnailId}`];
+  const key = [`videos/${videoId}/thumbnails`, thumbnailId];
   return useQuery<Thumbnail, 'thumbnails'>({
     queryKey: key,
     queryFn: fetchOne,