diff --git a/src/platforms/px4_config.h b/src/platforms/px4_config.h
index 041c703dfc..c84d5d74c6 100644
--- a/src/platforms/px4_config.h
+++ b/src/platforms/px4_config.h
@@ -47,7 +47,6 @@
 #include <board_config.h>
 
 #elif defined (__PX4_POSIX)
-#  include <system_config.h>
 #  if !defined(__PX4_UNIT_TESTS)
 #    include <board_config.h>
 #  endif