diff --git a/repos/nix/robot-builder.nix b/repos/nix/robot-builder.nix
index 824f82e..c8e3ebb 100644
--- a/repos/nix/robot-builder.nix
+++ b/repos/nix/robot-builder.nix
@@ -13,6 +13,7 @@ buildRosPackage rec {
 
   buildType = "ament_python";
   checkInputs = [ ament-copyright ament-flake8 ament-pep257 python3Packages.pytest ];
+  propagatedBuildInputs = [ python3Packages.loguru ];
 
   meta = {
     description = "TODO: Package description";