diff --git a/include/os/linux/spl/sys/mutex.h b/include/os/linux/spl/sys/mutex.h
index 677076a0f..6b61c59c4 100644
--- a/include/os/linux/spl/sys/mutex.h
+++ b/include/os/linux/spl/sys/mutex.h
@@ -171,6 +171,7 @@ spl_mutex_lockdep_on_maybe(kmutex_t *mp)			\
  */
 #define	mutex_exit(mp)						\
 {								\
+	ASSERT3P(mutex_owner(mp), ==, current);			\
 	spl_mutex_clear_owner(mp);				\
 	spin_lock(&(mp)->m_lock);				\
 	spl_mutex_lockdep_off_maybe(mp);			\