diff --git a/protobuf-c-namespace.patch b/protobuf-c-namespace.patch
deleted file mode 100644
index 557349b..0000000
--- a/protobuf-c-namespace.patch
+++ /dev/null
@@ -1,23 +0,0 @@
-From 080724364a5aad61728f8eba57677467bf329088 Mon Sep 17 00:00:00 2001
-From: storyun <joowoni91@gmail.com>
-Date: Wed, 19 Sep 2018 11:34:48 +0900
-Subject: [PATCH] Invalid namespace
-
-google::protobuf::message::Reflaction is not exist namespace.
----
- t/generated-code2/cxx-generate-packed-data.cc | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/t/generated-code2/cxx-generate-packed-data.cc b/t/generated-code2/cxx-generate-packed-data.cc
-index 4fd3e25..0865d2e 100644
---- a/t/generated-code2/cxx-generate-packed-data.cc
-+++ b/t/generated-code2/cxx-generate-packed-data.cc
-@@ -998,7 +998,7 @@ static void dump_test_packed_repeated_enum (void)
- static void dump_test_unknown_fields (void)
- {
-   EmptyMess mess;
--  const google::protobuf::Message::Reflection *reflection = mess.GetReflection();
-+  const google::protobuf::Reflection *reflection = mess.GetReflection();
-   google::protobuf::UnknownFieldSet *fs = reflection->MutableUnknownFields(&mess);
- 
- #if GOOGLE_PROTOBUF_VERSION >= 2001000