diff --git a/src/Umbraco.Web.UI.Client/src/packages/documents/document-types/types.ts b/src/Umbraco.Web.UI.Client/src/packages/documents/document-types/types.ts
index 0cb1487c2f..7d3825ef1e 100644
--- a/src/Umbraco.Web.UI.Client/src/packages/documents/document-types/types.ts
+++ b/src/Umbraco.Web.UI.Client/src/packages/documents/document-types/types.ts
@@ -10,8 +10,8 @@ export interface UmbDocumentTypeDetailModel extends UmbContentTypeModel {
 
 export type UmbDocumentTypeCleanupModel = {
 	preventCleanup: boolean;
-	keepAllVersionsNewerThanDays: number | null;
-	keepLatestVersionPerDayForDays: number | null;
+	keepAllVersionsNewerThanDays?: number | null;
+	keepLatestVersionPerDayForDays?: number | null;
 };
 
 export interface UmbDocumentTypeCompositionRequestModel {