diff --git a/a8/xtimer.cc b/a8/xtimer.cc
index e3e20c6..a1c5dec 100644
--- a/a8/xtimer.cc
+++ b/a8/xtimer.cc
@@ -524,6 +524,14 @@ namespace a8
         impl_->InternalModifyTime(timer_wp.lock()->timer, expire_time);
     }
 
+    void XTimer::ResetTimer(XTimerWp& timer_wp)
+    {
+        if (timer_wp.expired()) {
+            abort();
+        }
+        impl_->InternalModifyTime(timer_wp.lock()->timer, timer_wp.lock()->timer->expire_time);
+    }
+
     void XTimer::Delete(XTimerWp& timer_wp)
     {
         if (timer_wp.expired()) {
diff --git a/a8/xtimer.h b/a8/xtimer.h
index 4dd9d6b..4fbf377 100644
--- a/a8/xtimer.h
+++ b/a8/xtimer.h
@@ -27,6 +27,7 @@ namespace a8
 
         void FireEvent(XTimerWp& timer_wp, int event, a8::Args* args);
         void ModifyTime(XTimerWp& timer_wp, int expire_time);
+        void ResetTimer(XTimerWp& timer_wp);
         void Delete(XTimerWp& timer_wp);
         long long GetRemainTime(XTimerWp& timer_wp);
         void DeleteCurrentTimer();