diff --git a/boards/px4/fmu-v6c/default.px4board b/boards/px4/fmu-v6c/default.px4board
index 2cd85c9fe5..0e07d9dd60 100644
--- a/boards/px4/fmu-v6c/default.px4board
+++ b/boards/px4/fmu-v6c/default.px4board
@@ -80,7 +80,6 @@ CONFIG_SYSTEMCMDS_PARAM=y
 CONFIG_SYSTEMCMDS_PERF=y
 CONFIG_SYSTEMCMDS_REBOOT=y
 CONFIG_SYSTEMCMDS_SD_BENCH=y
-CONFIG_SYSTEMCMDS_SERIAL_TEST=y
 CONFIG_SYSTEMCMDS_SYSTEM_TIME=y
 CONFIG_SYSTEMCMDS_TOP=y
 CONFIG_SYSTEMCMDS_TOPIC_LISTENER=y