diff --git a/boards/mro/x21-777/nuttx-config/nsh/defconfig b/boards/mro/x21-777/nuttx-config/nsh/defconfig
index f23169798e..09b7b2e1d1 100644
--- a/boards/mro/x21-777/nuttx-config/nsh/defconfig
+++ b/boards/mro/x21-777/nuttx-config/nsh/defconfig
@@ -130,6 +130,7 @@ 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