diff --git a/docs/references.md b/docs/references.md
index 6399c85b..e5ca3fd9 100644
--- a/docs/references.md
+++ b/docs/references.md
@@ -490,7 +490,7 @@ message MyMessage {
 ## (grpc.federation.message).messages
 
 | field | type | required or optional |
-| ----- | ---- | -------------------- | ---- |
+| ----- | ---- | -------------------- |
 | [`name`](#grpcfederationmessagemessagesname) | string | optional |
 | [`message`](#grpcfederationmessagemessagesmessage) | string | required |
 | [`args`](#grpcfederationmessagemessagesargs) | repeated Argument | optional |
@@ -578,4 +578,4 @@ If there are any values retrieved by `grpc.federation.message` option, they are
 and specifies the field name to be referenced among the messages specified in `alias` of message option.
 If the specified field has the same type or can be converted automatically, its value is assigned.
 
-## (grpc.federation.field).string
\ No newline at end of file
+## (grpc.federation.field).string