diff --git a/src/components/FileManageDialog.vue b/src/components/FileManageDialog.vue
index 7e7e625..5b198bb 100644
--- a/src/components/FileManageDialog.vue
+++ b/src/components/FileManageDialog.vue
@@ -578,7 +578,7 @@ export default defineComponent({
         align: "center",
         label: $t.t("file size"),
         field: (val: FileEntity) =>
-          val.is_directory ? null : Math.ceil((val ? val.file_size : 0) / 1000),
+          val.is_directory ? null : Math.ceil((val ? val.file_size : 0) / 1024),
         format: (val: any) => (val != null ? `${val} KB` : ""),
         sortable: true,
       },