diff --git a/td/generate/generate_c.cpp b/td/generate/generate_c.cpp
index ecd7ca058..4965a04dd 100644
--- a/td/generate/generate_c.cpp
+++ b/td/generate/generate_c.cpp
@@ -11,10 +11,7 @@
 
 int main() {
   td::tl::tl_config config_td = td::tl::read_tl_config_from_file("auto/tlo/td_api.tlo");
-  td::tl::write_tl_to_file(config_td, "auto/td/telegram/td_tdc_api.h",
-                           td::TlWriterCCommon("TdApi", 1, "#include \"td/telegram/td_api.h\"\n"));
-  td::tl::write_tl_to_file(config_td, "auto/td/telegram/td_tdc_api_inner.h",
-                           td::TlWriterCCommon("TdApi", -1, "#include \"td/telegram/td_api.h\"\n"));
-  td::tl::write_tl_to_file(config_td, "auto/td/telegram/td_tdc_api.cpp",
-                           td::TlWriterCCommon("TdApi", 0, "#include \"td/telegram/td_api.h\"\n"));
+  td::tl::write_tl_to_file(config_td, "auto/td/telegram/td_tdc_api.h", td::TlWriterCCommon("TdApi", 1));
+  td::tl::write_tl_to_file(config_td, "auto/td/telegram/td_tdc_api_inner.h", td::TlWriterCCommon("TdApi", -1));
+  td::tl::write_tl_to_file(config_td, "auto/td/telegram/td_tdc_api.cpp", td::TlWriterCCommon("TdApi", 0));
 }
diff --git a/td/generate/tl_writer_c.h b/td/generate/tl_writer_c.h
index b10eb9ca5..987babc3b 100644
--- a/td/generate/tl_writer_c.h
+++ b/td/generate/tl_writer_c.h
@@ -17,11 +17,10 @@
 namespace td {
 
 class TlWriterCCommon final : public tl::TL_writer {
- public:
   int is_header_;
-  std::string prefix_;
-  TlWriterCCommon(const std::string &name, int is_header, const std::string &prefix = "")
-      : TL_writer(name), is_header_(is_header), prefix_(prefix) {
+
+ public:
+  TlWriterCCommon(const std::string &name, int is_header) : TL_writer(name), is_header_(is_header) {
   }
 
   int get_max_arity() const final {
@@ -1360,4 +1359,5 @@ class TlWriterCCommon final : public tl::TL_writer {
     return 2;
   }
 };
+
 }  // namespace td