diff --git a/src/modules/08_KPI/components/Tab/05_File.vue b/src/modules/08_KPI/components/Tab/05_File.vue
index be9a44d..e05c3a2 100644
--- a/src/modules/08_KPI/components/Tab/05_File.vue
+++ b/src/modules/08_KPI/components/Tab/05_File.vue
@@ -25,7 +25,7 @@ interface ArrayFileList {
   fileName: string;
 }
 
-const isReadonly = <boolean>(route.name === "KPIEditEvaluator" ? true : false);
+const isReadonly = ref<boolean>(route.name === "KPIEditEvaluator" ? true : false);
 
 const documentFile = ref<any>(null);
 const fileList = ref<ArrayFileList[]>([]);