diff --git a/overlays/reticulum.nix b/overlays/reticulum.nix
index ffab686..e646559 100644
--- a/overlays/reticulum.nix
+++ b/overlays/reticulum.nix
@@ -5,6 +5,7 @@ in {
   reticulumStack = python3.pkgs.buildPythonApplication rec {
     pname = "reticulum";
     version = "1.2.9";
+    format = "setuptools";
     src = pyPkgs.fetchPypi {
       pname = "rns";
       inherit version;
@@ -24,6 +25,7 @@ in {
   lxmf = python3.pkgs.buildPythonApplication rec {
     pname = "lxmf";
     version = "0.9.8";
+    format = "setuptools";
     src = pyPkgs.fetchPypi {
       inherit pname version;
       sha256 = "30f39f3a975a049c12ee2cfceb3261d24cb5adec881c6821f7354464b3f3650c";
@@ -42,6 +44,7 @@ in {
   nomadnet = python3.pkgs.buildPythonApplication rec {
     pname = "nomadnet";
     version = "1.1.1";
+    format = "setuptools";
     src = pyPkgs.fetchPypi {
       inherit pname version;
       sha256 = "fa13b64a10e75b705a58024815ab72451700aa726af96d415ba99dec28dfc40a";
@@ -60,6 +63,7 @@ in {
   rnsh = python3.pkgs.buildPythonApplication rec {
     pname = "rnsh";
     version = "0.1.7";
+    format = "setuptools";
     src = pyPkgs.fetchPypi {
       inherit pname version;
       sha256 = "9cb72f25abb1c6d300f8014b264184ff78f592fe88e36094938012990b797c93";