diff --git a/public/app/plugins/datasource/testdata/runStreams.ts b/public/app/plugins/datasource/testdata/runStreams.ts
index 943406fe74c..8ebded83338 100644
--- a/public/app/plugins/datasource/testdata/runStreams.ts
+++ b/public/app/plugins/datasource/testdata/runStreams.ts
@@ -51,10 +51,9 @@ export function runSignalStream(
 
     const schema: DataFrameSchema = {
       refId: target.refId,
-      name: target.alias || 'Signal ' + target.refId,
       fields: [
         { name: 'time', type: FieldType.time },
-        { name: 'value', type: FieldType.number },
+        { name: target.alias ?? 'value', type: FieldType.number },
       ],
     };