diff --git a/boards/px4/raspberrypi/cmake/upload.cmake b/boards/px4/raspberrypi/cmake/upload.cmake
index c77e80cd2e..5abefb01e6 100644
--- a/boards/px4/raspberrypi/cmake/upload.cmake
+++ b/boards/px4/raspberrypi/cmake/upload.cmake
@@ -38,7 +38,7 @@ else()
 endif()
 
 add_custom_target(upload
-	COMMAND rsync -arh --progress
+	COMMAND rsync -arh --progress -e "ssh -o StrictHostKeyChecking=no"
 			${CMAKE_RUNTIME_OUTPUT_DIRECTORY} ${PX4_SOURCE_DIR}/posix-configs/rpi/*.config ${PX4_BINARY_DIR}/etc # source
 			pi@${AUTOPILOT_HOST}:/home/pi/px4 # destination
 	DEPENDS px4