diff --git a/Services/server/src/interfaces/ehr-fs.ts b/Services/server/src/interfaces/ehr-fs.ts
index 919cbcc..77a3c9b 100644
--- a/Services/server/src/interfaces/ehr-fs.ts
+++ b/Services/server/src/interfaces/ehr-fs.ts
@@ -27,6 +27,11 @@ export interface EhrFile {
   category: string[];
   keyword: string[];
 
+  /**
+   * @private For internal use only.
+   */
+  upload: boolean;
+
   updatedAt: string | Date;
   updatedBy: string;
   createdAt: string | Date;