diff --git a/flake.nix b/flake.nix
index 1f70520..0432a71 100644
--- a/flake.nix
+++ b/flake.nix
@@ -28,6 +28,8 @@
             pkgs.dtc
             pkgs.ninja
             pkgs.qemu # needed for native_posix target
+
+            pkgs.just
           ];
         };
       });