diff --git a/[refs] b/[refs]
index b8a59130c8bf..e67dba4649e2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: be6b5a3505fa0cd54c3b5959a39293f47c648980
+refs/heads/master: 6ea24f9ad18c65cc179593b5cc2a88cdadf8cc0c
diff --git a/trunk/kernel/timer.c b/trunk/kernel/timer.c
index ee319fc69f40..726caf9a0a69 100644
--- a/trunk/kernel/timer.c
+++ b/trunk/kernel/timer.c
@@ -408,7 +408,7 @@ static int cascade(tvec_base_t *base, tvec_t *tv, int index)
  * This function cascades all vectors and executes all expired timer
  * vectors.
  */
-#define INDEX(N) (base->timer_jiffies >> (TVR_BITS + N * TVN_BITS)) & TVN_MASK
+#define INDEX(N) ((base->timer_jiffies >> (TVR_BITS + (N) * TVN_BITS)) & TVN_MASK)
 
 static inline void __run_timers(tvec_base_t *base)
 {