diff --git a/plugins/cost-insights/src/hooks/useConfig.tsx b/plugins/cost-insights/src/hooks/useConfig.tsx
index 97bcdbd3b8..680a682df7 100644
--- a/plugins/cost-insights/src/hooks/useConfig.tsx
+++ b/plugins/cost-insights/src/hooks/useConfig.tsx
@@ -47,8 +47,7 @@ import { configApiRef, useApi } from '@backstage/core-plugin-api';
  *     metricB:
  *       name: Metric B
  *   baseCurrency:
- *     locales:
- *     - nl-NL
+ *     locales: nl-NL
  *     options:
  *       style: currency
  *       currency: EUR