diff --git a/net/dns/mdns_cache.h b/net/dns/mdns_cache.h
index d1ea1c1..6e91a9c 100644
--- a/net/dns/mdns_cache.h
+++ b/net/dns/mdns_cache.h
@@ -50,7 +50,8 @@
     std::string optional_;
   };
 
-  typedef base::Callback<void(const RecordParsed*)> RecordRemovedCallback;
+  typedef base::RepeatingCallback<void(const RecordParsed*)>
+      RecordRemovedCallback;
 
   enum UpdateType {
     RecordAdded,