diff --git a/src/ros2_medkit_discovery_plugins/ros2_medkit_linux_introspection/package.xml b/src/ros2_medkit_discovery_plugins/ros2_medkit_linux_introspection/package.xml
index 51187f97..215bf8bf 100644
--- a/src/ros2_medkit_discovery_plugins/ros2_medkit_linux_introspection/package.xml
+++ b/src/ros2_medkit_discovery_plugins/ros2_medkit_linux_introspection/package.xml
@@ -9,6 +9,7 @@
 
   <buildtool_depend>ament_cmake</buildtool_depend>
   <buildtool_depend>ros2_medkit_cmake</buildtool_depend>
+  <buildtool_depend>pkg-config</buildtool_depend>
 
   <depend>ros2_medkit_gateway</depend>
   <depend>nlohmann-json-dev</depend>