diff --git a/boards/mro/x21/nuttx-config/nsh/defconfig b/boards/mro/x21/nuttx-config/nsh/defconfig
index 1d9b748c6b..f1eace4cba 100644
--- a/boards/mro/x21/nuttx-config/nsh/defconfig
+++ b/boards/mro/x21/nuttx-config/nsh/defconfig
@@ -126,6 +126,7 @@ 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