diff --git a/launch/pub_test.launch b/launch/pub_test.launch
index 5475b82216..2dcf8ace50 100644
--- a/launch/pub_test.launch
+++ b/launch/pub_test.launch
@@ -1,8 +1,9 @@
 <launch>
-  <include file="$(find px4)/launch/mavros_posix_sitl.launch"/>
-  <param name="pub_test/topic" value="/mavros/local_position/pose"/>
-  <param name="pub_test/hz" value="30.0"/>
-  <param name="pub_test/hzerror" value="1.0"/>
-  <param name="pub_test/test_duration" value="10.0"/>
-  <test test-name="pub_test" pkg="rostest" type="hztest" name="pub_test"/>
+    <!-- Test mavros posix sitl publishes pose at 30 Hz -->
+    <include file="$(find px4)/launch/mavros_posix_sitl.launch"/>
+    <param name="pub_test/topic" value="/mavros/local_position/pose"/>
+    <param name="pub_test/hz" value="30.0"/>
+    <param name="pub_test/hzerror" value="1.0"/>
+    <param name="pub_test/test_duration" value="10.0"/>
+    <test test-name="pub_test" pkg="rostest" type="hztest" name="pub_test"/>
 </launch>