diff --git a/src/file_lists.cmake b/src/file_lists.cmake
index 52c856d5da..d88f706b47 100644
--- a/src/file_lists.cmake
+++ b/src/file_lists.cmake
@@ -116,6 +116,7 @@ set(libprotobuf_hdrs
   ${protobuf_SOURCE_DIR}/src/google/protobuf/descriptor.h
   ${protobuf_SOURCE_DIR}/src/google/protobuf/descriptor.pb.h
   ${protobuf_SOURCE_DIR}/src/google/protobuf/descriptor_database.h
+  ${protobuf_SOURCE_DIR}/src/google/protobuf/descriptor_legacy.h
   ${protobuf_SOURCE_DIR}/src/google/protobuf/descriptor_lite.h
   ${protobuf_SOURCE_DIR}/src/google/protobuf/descriptor_visitor.h
   ${protobuf_SOURCE_DIR}/src/google/protobuf/dynamic_message.h