diff --git a/robotoff/prediction/object_detection/utils/label_map_util.py b/robotoff/prediction/object_detection/utils/label_map_util.py
index 0b2e84a593..bf0c136528 100644
--- a/robotoff/prediction/object_detection/utils/label_map_util.py
+++ b/robotoff/prediction/object_detection/utils/label_map_util.py
@@ -141,7 +141,7 @@ def load_labelmap(path: str):
     """
     with open(path, "r") as fid:
         label_map_string = fid.read()
-        label_map = string_int_label_map_pb2.StringIntLabelMap()
+        label_map = string_int_label_map_pb2.StringIntLabelMap()  # type: ignore
         try:
             text_format.Merge(label_map_string, label_map)
         except text_format.ParseError:
diff --git a/robotoff/prediction/object_detection/utils/string_int_label_map_pb2.py b/robotoff/prediction/object_detection/utils/string_int_label_map_pb2.py
index 48d90f6b87..3f1d729da5 100644
--- a/robotoff/prediction/object_detection/utils/string_int_label_map_pb2.py
+++ b/robotoff/prediction/object_detection/utils/string_int_label_map_pb2.py
@@ -1,5 +1,6 @@
 # Generated by the protocol buffer compiler.  DO NOT EDIT!
 # source: robotoff/ml/object_detection/utils/string_int_label_map.proto
+# type: ignore
 
 import sys