diff --git a/pkgs/development/python-modules/greatfet/default.nix b/pkgs/development/python-modules/greatfet/default.nix
index bbe8269f1203..9d55399d9b09 100644
--- a/pkgs/development/python-modules/greatfet/default.nix
+++ b/pkgs/development/python-modules/greatfet/default.nix
@@ -39,6 +39,8 @@ buildPythonPackage rec {
 
   build-system = [ setuptools ];
 
+  pythonRelaxDeps = [ "ipython" ];
+
   dependencies = [
     cmsis-svd
     future