diff --git a/boards/px4/fmu-v4/nuttx-config/stackcheck/defconfig b/boards/px4/fmu-v4/nuttx-config/stackcheck/defconfig
index 18ffc5b665..d36ec49533 100644
--- a/boards/px4/fmu-v4/nuttx-config/stackcheck/defconfig
+++ b/boards/px4/fmu-v4/nuttx-config/stackcheck/defconfig
@@ -127,6 +127,7 @@ CONFIG_SCHED_HPWORK=y
 CONFIG_SCHED_HPWORKPRIORITY=249
 CONFIG_SCHED_HPWORKSTACKSIZE=1280
 CONFIG_SCHED_INSTRUMENTATION=y
+CONFIG_SCHED_INSTRUMENTATION_EXTERNAL=y
 CONFIG_SCHED_LPWORK=y
 CONFIG_SCHED_LPWORKPRIORITY=50
 CONFIG_SCHED_LPWORKSTACKSIZE=1632