diff --git a/pkgs/development/python-modules/flask-mongoengine/default.nix b/pkgs/development/python-modules/flask-mongoengine/default.nix
index 631aaa7c621e..21003b9f9296 100644
--- a/pkgs/development/python-modules/flask-mongoengine/default.nix
+++ b/pkgs/development/python-modules/flask-mongoengine/default.nix
@@ -1,12 +1,14 @@
 { lib
 , buildPythonPackage
+, email-validator
 , fetchFromGitHub
 , flask
 , flask-wtf
+, markupsafe
 , mongoengine
-, email-validator
 , pythonOlder
 , typing-extensions
+, wtforms
 }:
 
 buildPythonPackage rec {
@@ -32,6 +34,19 @@ buildPythonPackage rec {
     typing-extensions
   ];
 
+  passthru.optional-dependencies = {
+    wtf = [
+      flask-wtf
+      wtforms
+    ] ++ wtforms.optional-dependencies.email;
+    # toolbar = [
+    #   flask-debugtoolbar
+    # ];
+    legacy = [
+      markupsafe
+    ];
+  };
+
   # Tests require working mongodb connection
   doCheck = false;