diff --git a/public/app/plugins/datasource/graphite/components/MetricTankMetaInspector.tsx b/public/app/plugins/datasource/graphite/components/MetricTankMetaInspector.tsx
index f6fa47839b5..bb48052c2b2 100644
--- a/public/app/plugins/datasource/graphite/components/MetricTankMetaInspector.tsx
+++ b/public/app/plugins/datasource/graphite/components/MetricTankMetaInspector.tsx
@@ -96,7 +96,7 @@ export class MetricTankMetaInspector extends PureComponent<Props, State> {
     const seriesMetas: Record<string, MetricTankSeriesMeta> = {};
 
     for (const series of data) {
-      if (series.meta && series.meta.custom) {
+      if (series?.meta?.custom?.seriesMetaList) {
         for (const metaItem of series.meta.custom.seriesMetaList as MetricTankSeriesMeta[]) {
           // key is to dedupe as many series will have identitical meta
           const key = `${JSON.stringify(metaItem)}`;