diff --git a/nixos/modules/services/continuous-integration/buildkite-agent.nix b/nixos/modules/services/continuous-integration/buildkite-agent.nix
index 49fa4271cac..ca31865b9c2 100644
--- a/nixos/modules/services/continuous-integration/buildkite-agent.nix
+++ b/nixos/modules/services/continuous-integration/buildkite-agent.nix
@@ -223,7 +223,7 @@ in
           '';
 
         serviceConfig =
-          { ExecStart = "${cfg.buildkite-agent}/bin/buildkite-agent start --config /var/lib/buildkite-agent/buildkite-agent.cfg";
+          { ExecStart = "${cfg.package}/bin/buildkite-agent start --config /var/lib/buildkite-agent/buildkite-agent.cfg";
             User = "buildkite-agent";
             RestartSec = 5;
             Restart = "on-failure";