diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 3e7e38f40ca..672033cfa71 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -298,6 +298,7 @@ rec {
       pythonPackages.waitress
       pythonPackages.webhelpers
       pythonPackages.zope_sqlalchemy
+      pythonPackages.psycopg2
     ];
 
     postInstall = ''