diff --git a/pkgs/servers/http/nginx/generic.nix b/pkgs/servers/http/nginx/generic.nix
index b0a4a84b2fa..2c0dbc7d665 100644
--- a/pkgs/servers/http/nginx/generic.nix
+++ b/pkgs/servers/http/nginx/generic.nix
@@ -1,4 +1,5 @@
 { stdenv, fetchurl, fetchpatch, openssl, zlib, pcre, libxml2, libxslt
+, nixosTests
 , substituteAll, gd, geoip, perl
 , withDebug ? false
 , withStream ? true
@@ -109,7 +110,10 @@ stdenv.mkDerivation {
     mv $out/sbin $out/bin
   '';
 
-  passthru.modules = modules;
+  passthru = {
+    modules = modules;
+    tests.nginx = nixosTests.nginx;
+  };
 
   meta = {
     description = "A reverse proxy and lightweight webserver";
diff --git a/pkgs/servers/nosql/redis/default.nix b/pkgs/servers/nosql/redis/default.nix
index f7a67ce398d..2c315feba84 100644
--- a/pkgs/servers/nosql/redis/default.nix
+++ b/pkgs/servers/nosql/redis/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, lua, jemalloc }:
+{ stdenv, fetchurl, lua, jemalloc, nixosTests }:
 
 stdenv.mkDerivation rec {
   version = "5.0.6";
@@ -29,6 +29,8 @@ stdenv.mkDerivation rec {
 
   doCheck = false; # needs tcl
 
+  passthru.tests.redis = nixosTests.redis;
+
   meta = with stdenv.lib; {
     homepage = https://redis.io;
     description = "An open source, advanced key-value store";
diff --git a/pkgs/tools/networking/ferm/default.nix b/pkgs/tools/networking/ferm/default.nix
index 2cf111e8ccf..6f1660484e7 100644
--- a/pkgs/tools/networking/ferm/default.nix
+++ b/pkgs/tools/networking/ferm/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, makeWrapper, perl, ebtables, ipset, iptables }:
+{ stdenv, fetchurl, makeWrapper, perl, ebtables, ipset, iptables, nixosTests }:
 
 stdenv.mkDerivation rec {
   version = "2.4.1";
@@ -21,6 +21,8 @@ stdenv.mkDerivation rec {
     done
   '';
 
+  passthru.tests.ferm = nixosTests.ferm;
+
   meta = {
     homepage = http://ferm.foo-projects.org/;
     description = "Tool to maintain complex firewalls";