diff --git a/pkgs/tools/networking/haproxy/default.nix b/pkgs/tools/networking/haproxy/default.nix
index 41dd747315b..80b135e524b 100644
--- a/pkgs/tools/networking/haproxy/default.nix
+++ b/pkgs/tools/networking/haproxy/default.nix
@@ -1,7 +1,7 @@
 { useLua ? !stdenv.isDarwin
 , usePcre ? true
 , withPrometheusExporter ? true
-, stdenv, lib, fetchurl
+, stdenv, lib, fetchurl, nixosTests
 , openssl, zlib
 , lua5_3 ? null, pcre ? null, systemd ? null
 }:
@@ -51,6 +51,8 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
+  passthru.tests.haproxy = nixosTests.haproxy;
+
   meta = with lib; {
     description = "Reliable, high performance TCP/HTTP load balancer";
     longDescription = ''