diff --git a/cartographer_ros/launch/offline_backpack_2d.launch b/cartographer_ros/launch/offline_backpack_2d.launch
index ebd30aa..bb8ae0a 100644
--- a/cartographer_ros/launch/offline_backpack_2d.launch
+++ b/cartographer_ros/launch/offline_backpack_2d.launch
@@ -21,6 +21,7 @@
+
@@ -30,5 +31,6 @@
+
diff --git a/cartographer_ros/launch/offline_backpack_3d.launch b/cartographer_ros/launch/offline_backpack_3d.launch
index f5605ac..8dfa0f8 100644
--- a/cartographer_ros/launch/offline_backpack_3d.launch
+++ b/cartographer_ros/launch/offline_backpack_3d.launch
@@ -21,6 +21,7 @@
+
@@ -31,5 +32,6 @@
+
diff --git a/cartographer_ros/launch/offline_node.launch b/cartographer_ros/launch/offline_node.launch
index bf5bd7d..cf404a0 100644
--- a/cartographer_ros/launch/offline_node.launch
+++ b/cartographer_ros/launch/offline_node.launch
@@ -21,6 +21,7 @@
+
@@ -44,5 +45,6 @@
-configuration_basenames $(arg configuration_basenames)
-urdf_filenames $(arg urdf_filenames)
-bag_filenames $(arg bag_filenames)"
+ launch-prefix="$(arg launch_prefix)"
output="screen"/>