diff --git a/src/tests/expected/docker.txt b/src/tests/expected/docker.txt
index 91f928b..b522852 100644
--- a/src/tests/expected/docker.txt
+++ b/src/tests/expected/docker.txt
@@ -25,6 +25,7 @@ defaults
 frontend stats
     bind *:1936
     mode http
+    http-request use-service prometheus-exporter if { path /metrics }
     stats enable
     stats hide-version
     stats realm Haproxy\ Statistics