diff --git a/pkgs/development/python-modules/tornado/default.nix b/pkgs/development/python-modules/tornado/default.nix
index 676bb0ce4c3f..ac57f212d229 100644
--- a/pkgs/development/python-modules/tornado/default.nix
+++ b/pkgs/development/python-modules/tornado/default.nix
@@ -3,6 +3,18 @@
 , buildPythonPackage
 , fetchFromGitHub
 , pytestCheckHook
+
+# for passthru.tests
+, distributed
+, jupyter-server
+, jupyterlab
+, matplotlib
+, mitmproxy
+, pytest-tornado
+, pytest-tornasync
+, pyzmq
+, sockjs-tornado
+, urllib3
 }:
 
 buildPythonPackage rec {
@@ -38,6 +50,20 @@ buildPythonPackage rec {
 
   __darwinAllowLocalNetworking = true;
 
+  passthru.tests = {
+    inherit
+      distributed
+      jupyter-server
+      jupyterlab
+      matplotlib
+      mitmproxy
+      pytest-tornado
+      pytest-tornasync
+      pyzmq
+      sockjs-tornado
+      urllib3;
+  };
+
   meta = with lib; {
     description = "A web framework and asynchronous networking library";
     homepage = "https://www.tornadoweb.org/";