1 files changed, 1 insertions, 1 deletions
diff --git a/src/google/protobuf/extension_set.h b/src/google/protobuf/extension_set.h
index c23dc2b0..a99b17cb 100644
--- a/src/google/protobuf/extension_set.h
+++ b/src/google/protobuf/extension_set.h
@@ -619,7 +619,7 @@ class RepeatedMessageTypeTraits {
 
 template <typename ExtendeeType, typename TypeTraitsType,
           FieldType field_type, bool is_packed>
-class LIBPROTOBUF_EXPORT ExtensionIdentifier {
+class ExtensionIdentifier {
  public:
   typedef TypeTraitsType TypeTraits;
   typedef ExtendeeType Extendee;