diff --git a/classes.py b/classes.py
index ab469ec..6819717 100644
--- a/classes.py
+++ b/classes.py
@@ -377,6 +377,7 @@ class Room(GameObjects):
 
 
     def update(self, objects):
+        door_unlock_sound = mixer.Sound('audio/soundeffects/door_unlock.mp3')
         if objects is not None:
             self.objects = objects
         if not self.objects[1]:
@@ -386,6 +387,7 @@ class Room(GameObjects):
             self.locked = False
             for door in self.doors:
                 door.update(False)
+            door_unlock_sound.play()
         return
     
     def draw(self, screen):