diff --git a/nixos/modules/services/monitoring/prometheus/exporters/speedtest.nix b/nixos/modules/services/monitoring/prometheus/exporters/speedtest.nix
index da6497293776..143cda300096 100644
--- a/nixos/modules/services/monitoring/prometheus/exporters/speedtest.nix
+++ b/nixos/modules/services/monitoring/prometheus/exporters/speedtest.nix
@@ -15,6 +15,8 @@ let
     ;
 in
 {
+  port = 9798;
+
   extraOpts = {
     serverID = mkOption {
       type = types.int;