diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
index b65442f..7431a9c 100644
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -54,6 +54,7 @@
 	struct pid		*deadlock_task_pid;
 	struct rt_mutex		*deadlock_lock;
 #endif
+	int prio;
 };
 
 /*