diff --git a/public/app/features/plugins/datasource_srv.ts b/public/app/features/plugins/datasource_srv.ts
index 0ebe1891ce2..87cab5d424c 100644
--- a/public/app/features/plugins/datasource_srv.ts
+++ b/public/app/features/plugins/datasource_srv.ts
@@ -261,6 +261,7 @@ export class DatasourceSrv implements DataSourceService {
           const key = `$\{${variable.name}\}`;
           base.push({
             ...dsSettings,
+            isDefault: false,
             name: key,
             uid: key,
           });