diff --git a/parfait-core/src/main/java/io/pcp/parfait/QuiescentRegistryListener.java b/parfait-core/src/main/java/io/pcp/parfait/QuiescentRegistryListener.java
index f16d3f2..1beb666 100644
--- a/parfait-core/src/main/java/io/pcp/parfait/QuiescentRegistryListener.java
+++ b/parfait-core/src/main/java/io/pcp/parfait/QuiescentRegistryListener.java
@@ -17,6 +17,7 @@ public class QuiescentRegistryListener implements MonitorableRegistryListener {
     private volatile long lastTimeMonitorableAdded = 0;
     private final Object lock = new Object();
 	private final Supplier<Long> clock;
+    private static TimerTask prevTask = null;
 
     public QuiescentRegistryListener(final Runnable runnable, final long quietPeriodInMillis) {
     	this (runnable, new SystemTimePoller(), quietPeriodInMillis, new TimerScheduler(new Timer(QuiescentRegistryListener.class.getName(),true)));
@@ -25,19 +26,23 @@ public class QuiescentRegistryListener implements MonitorableRegistryListener {
     QuiescentRegistryListener(final Runnable runnable, final Supplier<Long> clock, final long quietPeriodInMillis, Scheduler scheduler) {
         this.quiescentScheduler = scheduler;
         this.clock = clock;
-        quiescentScheduler.schedule(new TimerTask() {
+        TimerTask newTask = new TimerTask() {
             @Override
             public void run() {
                 synchronized (lock) {
                     if (lastTimeMonitorableAdded > 0 && clock.get().longValue() >= (lastTimeMonitorableAdded + quietPeriodInMillis)) {
                         LOG.info(String.format("New Monitorables detected after quiet period of %dms", quietPeriodInMillis));
+                        if( prevTask!=null ){
+                            prevTask.cancel();
+                        }
                         runnable.run();
                         lastTimeMonitorableAdded = 0;
+                        prevTask = this;
                     }
                 }
             }
-        }, 1000, quietPeriodInMillis
-        );
+        };
+        quiescentScheduler.schedule(newTask, 1000, quietPeriodInMillis);
     }
 
     @Override