1 files changed, 1 insertions, 1 deletions
diff --git a/base/synchronization/waitable_event_watcher.h b/base/synchronization/waitable_event_watcher.h
index 116e274..a180d67 100644
--- a/base/synchronization/waitable_event_watcher.h
+++ b/base/synchronization/waitable_event_watcher.h
@@ -70,7 +70,7 @@ class BASE_EXPORT WaitableEventWatcher
   WaitableEventWatcher();
   virtual ~WaitableEventWatcher();
 
-  class Delegate {
+  class BASE_EXPORT Delegate {
    public:
     virtual ~Delegate() { }