diff --git a/nixos/modules/monitoring/server/grafana-dashboards/payments.json b/nixos/modules/monitoring/server/grafana-dashboards/payments.json
index 6bb121e4f0ad377145956fb2d75bb0679524bd8a..7d6f6bb12bae5c1401b1199a8b2831b39a4ba955 100644
--- a/nixos/modules/monitoring/server/grafana-dashboards/payments.json
+++ b/nixos/modules/monitoring/server/grafana-dashboards/payments.json
@@ -208,7 +208,7 @@
         },
         {
           "exemplar": true,
-          "expr": "payment_redemption_voucher_redeemed",
+          "expr": "payment_redemption_vouchers_redeemed",
           "format": "time_series",
           "hide": false,
           "interval": "",