diff --git a/Kernel/TimerQueue.cpp b/Kernel/TimerQueue.cpp
index fedba303f8c6fd..59910c1fb5f0b2 100644
--- a/Kernel/TimerQueue.cpp
+++ b/Kernel/TimerQueue.cpp
@@ -137,12 +137,12 @@ void TimerQueue::add_timer_locked(NonnullRefPtr<Timer> timer)
     }
 }
 
-TimerId TimerQueue::add_timer(clockid_t clock_id, timeval& deadline, Function<void()>&& callback)
+TimerId TimerQueue::add_timer(clockid_t clock_id, const Time& deadline, Function<void()>&& callback)
 {
     // FIXME: Should use AK::Time internally
-    auto expires = TimeManagement::the().current_time(clock_id).value();
-    timespec_add_timeval(expires, deadline, expires);
-    return add_timer(adopt(*new Timer(clock_id, Time::from_timespec(expires), move(callback))));
+    auto expires = Time::from_timespec(TimeManagement::the().current_time(clock_id).value());
+    expires = expires + deadline;
+    return add_timer(adopt(*new Timer(clock_id, expires, move(callback))));
 }
 
 bool TimerQueue::cancel_timer(TimerId id)
diff --git a/Kernel/TimerQueue.h b/Kernel/TimerQueue.h
index ea3b3bf88e5d0a..63f425d3d09693 100644
--- a/Kernel/TimerQueue.h
+++ b/Kernel/TimerQueue.h
@@ -93,7 +93,7 @@ class TimerQueue {
 
     TimerId add_timer(NonnullRefPtr<Timer>&&);
     RefPtr<Timer> add_timer_without_id(clockid_t, const Time&, Function<void()>&&);
-    TimerId add_timer(clockid_t, timeval& timeout, Function<void()>&& callback);
+    TimerId add_timer(clockid_t, const Time& timeout, Function<void()>&& callback);
     bool cancel_timer(TimerId id);
     bool cancel_timer(Timer&);
     bool cancel_timer(NonnullRefPtr<Timer>&& timer)