diff --git a/posix-configs/SITL/init/rcS b/posix-configs/SITL/init/rcS
index b3400967215..11b1af9a9a3 100644
--- a/posix-configs/SITL/init/rcS
+++ b/posix-configs/SITL/init/rcS
@@ -53,5 +53,6 @@ mavlink stream -r 80 -s ATTITUDE -u 14556
 mavlink stream -r 80 -s ATTITUDE_TARGET -u 14556
 mavlink stream -r 20 -s RC_CHANNELS -u 14556
 mavlink stream -r 250 -s HIGHRES_IMU -u 14556
+mavlink stream -r 10 -s OPTICAL_FLOW_RAD -u 14556
 mavlink boot_complete
 sdlog2 start -r 100 -e -t -a