diff --git a/create_package_modified/catkin_ws/src/beginner_tutorials/CMakeLists.txt b/create_package_modified/catkin_ws/src/beginner_tutorials/CMakeLists.txt
index 3e6426d..410f1ca 100644
--- a/create_package_modified/catkin_ws/src/beginner_tutorials/CMakeLists.txt
+++ b/create_package_modified/catkin_ws/src/beginner_tutorials/CMakeLists.txt
@@ -15,4 +15,7 @@ generate_messages(DEPENDENCIES std_msgs)
 ## Declare a catkin package
 catkin_package()
 
-# %EndTag(FULLTEXT)%
\ No newline at end of file
+## Build talker and listener
+include_directories(include ${catkin_INCLUDE_DIRS})
+
+# %EndTag(FULLTEXT)%