nginx-0.0.2-2004-03-02-18:40:59 import
diff --git a/src/event/ngx_event_timer.c b/src/event/ngx_event_timer.c
index 8983d99..79a2e19 100644
--- a/src/event/ngx_event_timer.c
+++ b/src/event/ngx_event_timer.c
@@ -9,8 +9,8 @@
 #endif
 
 
-volatile ngx_rbtree_t  *ngx_event_timer_rbtree;
-ngx_rbtree_t            ngx_event_timer_sentinel;
+ngx_thread_volatile ngx_rbtree_t  *ngx_event_timer_rbtree;
+ngx_rbtree_t                       ngx_event_timer_sentinel;
 
 
 ngx_int_t ngx_event_timer_init(ngx_log_t *log)