diff --git a/src/gTimer.erl b/src/gTimer.erl
index ce39f55..5b90143 100644
--- a/src/gTimer.erl
+++ b/src/gTimer.erl
@@ -9,7 +9,8 @@
    , setTimer/2
    , setTimer/3
    , getTimer/1
-   , delTimer/1
+   , asyncDelTimer/1
+   , syncDelTimer/1
 ]).
 
 timerName(Idx) ->
@@ -51,6 +52,10 @@ setTimer(Time, MFA, Strategy) ->
 getTimer(TimerRef) ->
    erlang:read_timer(TimerRef).
 
--spec delTimer(TimerRef :: reference()) -> false |  non_neg_integer().
-delTimer(TimerRef) ->
-   erlang:cancel_timer(TimerRef) .
\ No newline at end of file
+-spec asyncDelTimer(TimerRef :: reference()) -> false |  non_neg_integer().
+asyncDelTimer(TimerRef) ->
+   erlang:cancel_timer(TimerRef, [{async, true} | {info, false}]).
+
+-spec syncDelTimer(TimerRef :: reference()) -> false |  non_neg_integer().
+syncDelTimer(TimerRef) ->
+   erlang:cancel_timer(TimerRef).
\ No newline at end of file