diff --git a/nixos/modules/services/monitoring/prometheus/default.nix b/nixos/modules/services/monitoring/prometheus/default.nix
index 84a72afac2f7..76b1f755447b 100644
--- a/nixos/modules/services/monitoring/prometheus/default.nix
+++ b/nixos/modules/services/monitoring/prometheus/default.nix
@@ -307,7 +307,7 @@ let
         '';
       };
 
-      value = mkOption {
+      values = mkOption {
         type = types.listOf types.str;
         default = [];
         description = ''