diff --git a/astrid/plugin-src/com/todoroo/astrid/reminders/Notifications.java b/astrid/plugin-src/com/todoroo/astrid/reminders/Notifications.java
index b0d82d878..8a25b7c35 100644
--- a/astrid/plugin-src/com/todoroo/astrid/reminders/Notifications.java
+++ b/astrid/plugin-src/com/todoroo/astrid/reminders/Notifications.java
@@ -265,6 +265,23 @@ public class Notifications extends BroadcastReceiver {
         notificationManager.notify(notificationId, notification);
     }
 
+    /**
+     * Schedules alarms for a single task
+     *
+     * @param shouldPerformPropertyCheck
+     *            whether to check if task has requisite properties
+     */
+    public static void cancelNotifications(long taskId) {
+        if(notificationManager == null)
+            synchronized(Notifications.class) {
+                if(notificationManager == null)
+                    notificationManager = new AndroidNotificationManager(
+                            ContextManager.getContext());
+            }
+
+        notificationManager.cancel((int)taskId);
+    }
+
     // --- notification manager
 
     public static void setNotificationManager(
diff --git a/astrid/src/com/todoroo/astrid/dao/TaskDao.java b/astrid/src/com/todoroo/astrid/dao/TaskDao.java
index 613ec1658..5ef9e3c65 100644
--- a/astrid/src/com/todoroo/astrid/dao/TaskDao.java
+++ b/astrid/src/com/todoroo/astrid/dao/TaskDao.java
@@ -21,6 +21,7 @@ import com.todoroo.astrid.api.AstridApiConstants;
 import com.todoroo.astrid.dao.MetadataDao.MetadataCriteria;
 import com.todoroo.astrid.model.Task;
 import com.todoroo.astrid.provider.Astrid2TaskProvider;
+import com.todoroo.astrid.reminders.Notifications;
 import com.todoroo.astrid.reminders.ReminderService;
 import com.todoroo.astrid.utility.Preferences;
 import com.todoroo.astrid.widget.TasksWidget;
@@ -245,6 +246,8 @@ public class TaskDao extends GenericDao<Task> {
         Intent broadcastIntent = new Intent(AstridApiConstants.BROADCAST_EVENT_TASK_COMPLETED);
         broadcastIntent.putExtra(AstridApiConstants.EXTRAS_TASK_ID, task.getId());
         context.sendOrderedBroadcast(broadcastIntent, null);
+
+        Notifications.cancelNotifications(task.getId());
     }
 
 }