diff --git a/pkgs/selfprivacy-api/default.nix b/pkgs/selfprivacy-api/default.nix
index 7d86436..06a9873 100644
--- a/pkgs/selfprivacy-api/default.nix
+++ b/pkgs/selfprivacy-api/default.nix
@@ -12,7 +12,7 @@ let
         url = "https://git.selfprivacy.org/SelfPrivacy/selfprivacy-rest-api.git";
         rev = "0d92be8fb772a4699f96f21a1faec5dc11f3e260";
       };
-      propagatedBuildInputs = [ flask flask-restful setuptools portalocker flask-swagger flask-swagger-ui pytz pytest pytest-mock pytest huey gevent ];
+      propagatedBuildInputs = [ flask flask-restful setuptools portalocker flask-swagger flask-swagger-ui pytz pytest pytest-mock pytest-datadir huey gevent ];
       meta = {
         description = ''
           SelfPrivacy Server Management API