diff --git a/ROMFS/px4fmu_common/init.d-posix/CMakeLists.txt b/ROMFS/px4fmu_common/init.d-posix/CMakeLists.txt
index e23ee51fb2..419ed0ed18 100644
--- a/ROMFS/px4fmu_common/init.d-posix/CMakeLists.txt
+++ b/ROMFS/px4fmu_common/init.d-posix/CMakeLists.txt
@@ -34,9 +34,10 @@
 add_subdirectory(airframes)
 
 px4_add_romfs_files(
-	px4-rc.params
-	px4-rc.simulator
 	px4-rc.mavlink
+	px4-rc.params
+	px4-rc.rtps
+	px4-rc.simulator
 	rc.replay
 	rcS
 )
diff --git a/ROMFS/px4fmu_common/init.d-posix/px4-rc.rtps b/ROMFS/px4fmu_common/init.d-posix/px4-rc.rtps
new file mode 100644
index 0000000000..d3cfa4f817
--- /dev/null
+++ b/ROMFS/px4fmu_common/init.d-posix/px4-rc.rtps
@@ -0,0 +1,4 @@
+#!/bin/sh
+# shellcheck disable=SC2154
+
+micrortps_client start -t UDP -r $((2019+2*px4_instance)) -s $((2020+2*px4_instance))
diff --git a/ROMFS/px4fmu_common/init.d-posix/rcS b/ROMFS/px4fmu_common/init.d-posix/rcS
index f00beb95b7..bce77bce8a 100644
--- a/ROMFS/px4fmu_common/init.d-posix/rcS
+++ b/ROMFS/px4fmu_common/init.d-posix/rcS
@@ -228,8 +228,7 @@ navigator start
 # Try to start the micrortps_client with UDP transport if module exists
 if px4-micrortps_client status > /dev/null 2>&1
 then
-	# shellcheck disable=SC2154
-	micrortps_client start -t UDP -r $((2019+2*px4_instance)) -s $((2020+2*px4_instance))
+	. px4-rc.rtps
 fi
 
 if param greater -s MNT_MODE_IN -1