diff --git a/include/linux/sched.h b/include/linux/sched.h
index 76e869550646..9016bbacedf3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1626,6 +1626,14 @@ static inline unsigned int task_state_index(struct task_struct *tsk)
 	if (tsk_state == TASK_IDLE)
 		state = TASK_REPORT_IDLE;
 
+	/*
+	 * We're lying here, but rather than expose a completely new task state
+	 * to userspace, we can make this appear as if the task has gone through
+	 * a regular rt_mutex_lock() call.
+	 */
+	if (tsk_state == TASK_RTLOCK_WAIT)
+		state = TASK_UNINTERRUPTIBLE;
+
 	return fls(state);
 }