diff --git a/distros/humble/usb-cam/default.nix b/distros/humble/usb-cam/default.nix
index 798ae6fab2..f6ed3117b2 100644
--- a/distros/humble/usb-cam/default.nix
+++ b/distros/humble/usb-cam/default.nix
@@ -1,8 +1,7 @@
-
 # Copyright 2024 Open Source Robotics Foundation
 # Distributed under the terms of the BSD license
 
-{ lib, buildRosPackage, fetchurl, ament-cmake-auto, ament-cmake-gtest, ament-lint-auto, ament-lint-common, builtin-interfaces, camera-info-manager, cv-bridge, ffmpeg, image-transport, image-transport-plugins, rclcpp, rclcpp-components, ros-environment, rosidl-default-generators, rosidl-default-runtime, sensor-msgs, std-msgs, std-srvs, v4l-utils }:
+{ lib, buildRosPackage, fetchurl, ament-cmake-auto, ament-cmake-gtest, ament-lint-auto, ament-lint-common, builtin-interfaces, camera-info-manager, cv-bridge, ffmpeg, image-transport, image-transport-plugins, rclcpp, rclcpp-components, ros-environment, rosidl-default-generators, rosidl-default-runtime, sensor-msgs, std-msgs, std-srvs, v4l-utils, pkg-config }:
 buildRosPackage {
   pname = "ros-humble-usb-cam";
   version = "0.8.1-r1";
@@ -14,7 +13,7 @@ buildRosPackage {
   };
 
   buildType = "ament_cmake";
-  buildInputs = [ ament-cmake-auto ros-environment rosidl-default-generators ];
+  buildInputs = [ ament-cmake-auto ros-environment rosidl-default-generators pkg-config ];
   checkInputs = [ ament-cmake-gtest ament-lint-auto ament-lint-common ];
   propagatedBuildInputs = [ builtin-interfaces camera-info-manager cv-bridge ffmpeg image-transport image-transport-plugins rclcpp rclcpp-components rosidl-default-runtime sensor-msgs std-msgs std-srvs v4l-utils ];
   nativeBuildInputs = [ ament-cmake-auto rosidl-default-generators ];