diff --git a/Userland/Libraries/LibCore/Timer.cpp b/Userland/Libraries/LibCore/Timer.cpp
index cf5a35ac17e..c58f6d2bc5e 100644
--- a/Userland/Libraries/LibCore/Timer.cpp
+++ b/Userland/Libraries/LibCore/Timer.cpp
@@ -58,6 +58,14 @@ void Timer::stop()
     m_active = false;
 }
 
+void Timer::set_active(bool active)
+{
+    if (active)
+        start();
+    else
+        stop();
+}
+
 void Timer::timer_event(TimerEvent&)
 {
     if (m_single_shot)
diff --git a/Userland/Libraries/LibCore/Timer.h b/Userland/Libraries/LibCore/Timer.h
index 94c1ac4c1cf..2edadc6af17 100644
--- a/Userland/Libraries/LibCore/Timer.h
+++ b/Userland/Libraries/LibCore/Timer.h
@@ -37,6 +37,8 @@ public:
     void restart(int interval_ms);
     void stop();
 
+    void set_active(bool);
+
     bool is_active() const { return m_active; }
     int interval() const { return m_interval_ms; }
     void set_interval(int interval_ms)