diff --git a/src/hydra-queue-runner/hydra-queue-runner.cc b/src/hydra-queue-runner/hydra-queue-runner.cc
index 40babf33..c7d3b9b2 100644
--- a/src/hydra-queue-runner/hydra-queue-runner.cc
+++ b/src/hydra-queue-runner/hydra-queue-runner.cc
@@ -758,7 +758,7 @@ void State::run(BuildID buildOne)
     if (!lock)
         throw Error("hydra-queue-runner is already running");
 
-    std::cout << "Starting the Prometheus exporter on port " << exposerPort << std::endl;
+    std::cout << "Starting the Prometheus exporter on port " << metricsPort << std::endl;
 
     /* Set up simple exporter, to show that we're still alive. */
     std::string metricsAddress{"127.0.0.1"};