diff --git a/src/PersistentScheduler.coffee b/src/PersistentScheduler.coffee
index d1266c8..8eb68e1 100644
--- a/src/PersistentScheduler.coffee
+++ b/src/PersistentScheduler.coffee
@@ -125,8 +125,9 @@ class PersistentScheduler extends Scheduler
                 if err then throw new util.Error err
 
                 todoEvents = unsolvedOneTimeEvents.concat oneTimeEvents
-                for {timestamp, event, payload} in todoEvents
+                for {id, timestamp, event, payload} in todoEvents
                     @schedule timestamp, event, payload
+                    @store.remove  id, () ->
 
 
 # Public api.
diff --git a/src/Store.coffee b/src/Store.coffee
index ea08b09..22af5ff 100644
--- a/src/Store.coffee
+++ b/src/Store.coffee
@@ -148,6 +148,16 @@ class Store
 
                 return callback null, event.done is true
 
+    remove: (eventId, callback) ->
+        ###
+            Removes a one-time event.
+            @return {Boolean} whether the event was removed or not.
+        ###
+        @EventModel.remove {_id: eventId},
+            (err) ->
+                if err? then return callback err
+                return callback null, true
+
 
 # Public API
 module.exports = Store