diff --git a/src/google/protobuf/stubs/callback.h b/src/google/protobuf/stubs/callback.h
index 1ba6ea7a58..87271c5eb8 100644
--- a/src/google/protobuf/stubs/callback.h
+++ b/src/google/protobuf/stubs/callback.h
@@ -79,7 +79,7 @@ class LIBPROTOBUF_EXPORT Closure {
 };
 
 template<typename R>
-class LIBPROTOBUF_EXPORT ResultCallback {
+class ResultCallback {
  public:
   ResultCallback() {}
   virtual ~ResultCallback() {}