diff --git a/platforms/common/include/px4_platform_common/board_common.h b/platforms/common/include/px4_platform_common/board_common.h
index 2c158c58f9..4b9678afd6 100644
--- a/platforms/common/include/px4_platform_common/board_common.h
+++ b/platforms/common/include/px4_platform_common/board_common.h
@@ -262,10 +262,10 @@
 /*
  * Support both RC_SERIAL_PORT and CONFIG_BOARD_SERIAL_RC
  */
-#if defined(CONFIG_BOARD_SERIAL_RC)
-#  define RC_SERIAL CONFIG_BOARD_SERIAL_RC
-#elif defined(RC_SERIAL_PORT)
+#if defined(RC_SERIAL_PORT)
 #  define RC_SERIAL RC_SERIAL_PORT
+#elif defined(CONFIG_BOARD_SERIAL_RC)
+#  define RC_SERIAL CONFIG_BOARD_SERIAL_RC
 #else
 #  error Board needs to define either CONFIG_BOARD_SERIAL_RC or RC_SERIAL_PORT
 #endif