diff --git a/cartographer_ros/CMakeLists.txt b/cartographer_ros/CMakeLists.txt
index b65c20c..5e76ab0 100644
--- a/cartographer_ros/CMakeLists.txt
+++ b/cartographer_ros/CMakeLists.txt
@@ -176,8 +176,8 @@ install(TARGETS ${PROJECT_NAME}
 )
 
 # Install source headers.
-file(GLOB_RECURSE hdrs "*.h")
-foreach(HDR ${hdrs})
+file(GLOB_RECURSE HDRS "*.h")
+foreach(HDR ${HDRS})
   file(RELATIVE_PATH REL_FIL ${CMAKE_SOURCE_DIR} ${HDR})
   get_filename_component(INSTALL_DIR ${REL_FIL} DIRECTORY)
   install(
diff --git a/cartographer_ros/package.xml b/cartographer_ros/package.xml
index 1837a42..ab6382f 100644
--- a/cartographer_ros/package.xml
+++ b/cartographer_ros/package.xml
@@ -47,8 +47,10 @@
   <depend>message_runtime</depend>
   <depend>nav_msgs</depend>
   <depend>pcl_conversions</depend>
+  <depend>robot_state_publisher</depend>
   <depend>rosbag</depend>
   <depend>roscpp</depend>
+  <depend>roslaunch</depend>
   <depend>roslib</depend>
   <depend>sensor_msgs</depend>
   <depend>std_msgs</depend>
diff --git a/scripts/install_debs.sh b/scripts/install_debs.sh
index bf14013..8291bc5 100755
--- a/scripts/install_debs.sh
+++ b/scripts/install_debs.sh
@@ -22,8 +22,8 @@ set -o verbose
 cd catkin_ws
 
 # Install Ninja.
-sudo apt-get update
-sudo apt-get install -y ninja-build
+apt-get update
+apt-get install -y ninja-build
 
 # Install rosdep dependencies.
 rosdep update