1 files changed, 2 insertions, 1 deletions
diff --git a/base/message_loop/message_pump_default.h b/base/message_loop/message_pump_default.h
index a9b83e8..19e7200 100644
--- a/base/message_loop/message_pump_default.h
+++ b/base/message_loop/message_pump_default.h
@@ -5,13 +5,14 @@
 #ifndef BASE_MESSAGE_LOOP_MESSAGE_PUMP_DEFAULT_H_
 #define BASE_MESSAGE_LOOP_MESSAGE_PUMP_DEFAULT_H_
 
+#include "base/base_export.h"
 #include "base/message_loop/message_pump.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/time/time.h"
 
 namespace base {
 
-class MessagePumpDefault : public MessagePump {
+class BASE_EXPORT MessagePumpDefault : public MessagePump {
  public:
   MessagePumpDefault();
   virtual ~MessagePumpDefault();