diff --git a/src/pages/compute/containers/Instance/Detail/BaseDetail/index.jsx b/src/pages/compute/containers/Instance/Detail/BaseDetail/index.jsx
index df80c866..6695e746 100644
--- a/src/pages/compute/containers/Instance/Detail/BaseDetail/index.jsx
+++ b/src/pages/compute/containers/Instance/Detail/BaseDetail/index.jsx
@@ -362,7 +362,7 @@ export class BaseDetail extends Base {
         },
         {
           label: t('Size'),
-          value: `${item.size}GiB`,
+          value: item.size ? `${item.size}GiB` : '-',
         },
         {
           label: t('Volume Type'),