diff --git a/.gitmodules b/.gitmodules
index e74ad40527cc7eb8b3084f91260f06edc1851950..9e238566a6355f9f147a52697f9d84686fd421f6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -17,3 +17,6 @@
 	path = src/simulation_util
 	url = ../simulation_util.git
 	branch = master
+[submodule "src/tutorial_ros_hello_world"]
+	path = src/tutorial_ros_hello_world
+	url = git@git-st.inf.tu-dresden.de:ceti/ros-internal/ceti-summer-school/tutorial_ros_hello_world.git
diff --git a/src/sample_applications b/src/sample_applications
index 64243a07cc3428daa5e3818578ae04a882770b6e..97ac32243fcc7136e737a07eba4ac4bb55b74bb0 160000
--- a/src/sample_applications
+++ b/src/sample_applications
@@ -1 +1 @@
-Subproject commit 64243a07cc3428daa5e3818578ae04a882770b6e
+Subproject commit 97ac32243fcc7136e737a07eba4ac4bb55b74bb0
diff --git a/src/tutorial_ros_hello_world b/src/tutorial_ros_hello_world
new file mode 160000
index 0000000000000000000000000000000000000000..ef036bcfd2c93a2193787cf05a8321b7912f57e7
--- /dev/null
+++ b/src/tutorial_ros_hello_world
@@ -0,0 +1 @@
+Subproject commit ef036bcfd2c93a2193787cf05a8321b7912f57e7