diff --git a/third_party/protobuf/src/google/protobuf/repeated_ptr_field.h b/third_party/protobuf/src/google/protobuf/repeated_ptr_field.h
index e81b2c7e4..df3811563 100644
--- a/third_party/protobuf/src/google/protobuf/repeated_ptr_field.h
+++ b/third_party/protobuf/src/google/protobuf/repeated_ptr_field.h
@@ -847,7 +847,7 @@ class StringTypeHandler {
 // RepeatedPtrField is like RepeatedField, but used for repeated strings or
 // Messages.
 template <typename Element>
-class RepeatedPtrField final : private internal::RepeatedPtrFieldBase {
+class PROTOBUF_EXPORT RepeatedPtrField final : private internal::RepeatedPtrFieldBase {
 
  public:
   constexpr RepeatedPtrField();