diff --git a/x-pack/plugins/observability/public/components/shared/exploratory_view/series_builder/columns/report_definition_col.tsx b/x-pack/plugins/observability/public/components/shared/exploratory_view/series_builder/columns/report_definition_col.tsx
index 07e1d68e8acf5..909fd40c9a26b 100644
--- a/x-pack/plugins/observability/public/components/shared/exploratory_view/series_builder/columns/report_definition_col.tsx
+++ b/x-pack/plugins/observability/public/components/shared/exploratory_view/series_builder/columns/report_definition_col.tsx
@@ -27,7 +27,12 @@ const ReportDefinitionMap: Record<
     },
   ],
   kpi: [],
-  pgv: [],
+  pgv: [
+    {
+      field: 'service.name',
+      required: true,
+    },
+  ],
   svl: [
     {
       field: 'service.name',