diff --git a/sound_classification/CMakeLists.txt b/sound_classification/CMakeLists.txt
index 816dacd072..7c4663ea4f 100644
--- a/sound_classification/CMakeLists.txt
+++ b/sound_classification/CMakeLists.txt
@@ -5,7 +5,6 @@ find_package(catkin REQUIRED
   catkin_virtualenv
   message_generation
   std_msgs
-  roslaunch
   )
 if (${catkin_virtualenv_VERSION} VERSION_LESS "0.3.0")
   message(STATUS "sound_classification requires catkin_virtualenv >= 0.3.0")
diff --git a/sound_classification/package.xml b/sound_classification/package.xml
index 2dad7080d8..65d1045277 100644
--- a/sound_classification/package.xml
+++ b/sound_classification/package.xml
@@ -10,6 +10,7 @@
 
   <build_depend>catkin_virtualenv</build_depend>
   <build_depend>message_generation</build_depend>
+  <build_depend>std_msgs</build_depend>
 
   <exec_depend>audio_capture</exec_depend>
   <exec_depend>audio_to_spectrogram</exec_depend>