diff --git a/non-ros-files/Programming_Rules.md b/non-ros-files/Programming_Rules.md
index e8721e3..fc08369 100644
--- a/non-ros-files/Programming_Rules.md
+++ b/non-ros-files/Programming_Rules.md
@@ -25,7 +25,7 @@ colcon_workspace/
 ```
 The `src` directory is also the place where you create your new packages using `ros2 pkg create ...` and not in the root of the workspace.  
 
-The next chapters will describe the content of the files inside a package directory. However, the occuring files depend on the type of package (`ament_cmake` for C++ scripts or `ament_python` for Python scripts). This is described in detail [here](https://docs.ros.org/en/foxy/Tutorials/Creating-Your-First-ROS2-Package.html). The following chapters only describe Python packages (eg. `/pubsub`).
+The next chapters will describe the content of the files inside a package directory. However, the occuring files depend on the type of package (`ament_cmake` for C++ scripts or `ament_python` for Python scripts). This is described in detail [here](https://docs.ros.org/en/foxy/Tutorials/Creating-Your-First-ROS2-Package.html). The following chapters only describe Python packages (eg. `pubsub/`).
 
 
 ## setup.py