diff --git a/tfx/components/util/tfxio_utils.py b/tfx/components/util/tfxio_utils.py
index c2cc04ee2a..9a76c6e54d 100644
--- a/tfx/components/util/tfxio_utils.py
+++ b/tfx/components/util/tfxio_utils.py
@@ -32,7 +32,10 @@
 from tensorflow_metadata.proto.v0 import schema_pb2
 
 
-_SUPPORTED_FILE_FORMATS = (example_gen_pb2.FileFormat.FORMAT_PARQUET, example_gen_pb2.FileFormat.FORMAT_TFRECORDS_GZIP)
+_SUPPORTED_FILE_FORMATS = (
+    example_gen_pb2.FileFormat.FILE_FORMAT_PARQUET,
+    example_gen_pb2.FileFormat.FORMAT_TFRECORDS_GZIP
+)
 # TODO(b/162532479): switch to support List[str] exclusively, once tfx-bsl
 # post-0.22 is released.
 OneOrMorePatterns = Union[str, List[str]]
diff --git a/tfx/proto/example_gen.proto b/tfx/proto/example_gen.proto
index 93f9179822..4e9f0ee4f2 100644
--- a/tfx/proto/example_gen.proto
+++ b/tfx/proto/example_gen.proto
@@ -127,7 +127,7 @@ enum FileFormat {
 
   // Indicates parquet format files in any of the supported compressions.
   // https://arrow.apache.org/docs/python/parquet.html#compression-encoding-and-file-compatibility
-  FORMAT_PARQUET = 16;
+  FILE_FORMAT_PARQUET = 16;
 
   reserved 1 to 4, 7 to 15, 17 to max;
 }