diff --git a/protoc_plugins/schema2dict.py b/protoc_plugins/schema2dict.py
index e644ba8..3a7a63b 100644
--- a/protoc_plugins/schema2dict.py
+++ b/protoc_plugins/schema2dict.py
@@ -21,9 +21,7 @@
 """
 import json
 import sys
-from chameleon.protos.third_party.google.api import annotations_pb2
-_ = annotations_pb2
-from chameleon.protos import schema_pb2
+from chameleon.protos import schema_pb2, annotations_pb2
 from protobuf_to_dict import protobuf_to_dict