diff --git a/cmake/configs/posix_rpi_native.cmake b/cmake/configs/posix_rpi_native.cmake
index b2a54c4f65..bd677fada3 100644
--- a/cmake/configs/posix_rpi_native.cmake
+++ b/cmake/configs/posix_rpi_native.cmake
@@ -1,3 +1,7 @@
 include(configs/posix_rpi_common)
 
+add_definitions(
+	-D __DF_RPI
+	)
+
 set(CMAKE_TOOLCHAIN_FILE ${PX4_SOURCE_DIR}/cmake/toolchains/Toolchain-native.cmake)