diff --git a/fastcgi_parse.h b/fastcgi_parse.h
index 7f1cf8d..d2d58de 100644
--- a/fastcgi_parse.h
+++ b/fastcgi_parse.h
@@ -3,7 +3,13 @@
 #include <arpa/inet.h>
 
 struct FastCGIHeader {
-	uint8_t version;
+	FastCGIHeader(uint8_t type_in, uint16_t request_id, uint16_t content_length)
+			: type(type_in) {
+		SetRequestId(request_id);
+		SetContentLength(content_length);
+	}
+
+	uint8_t version = 1;
 	uint8_t type;
   private:
 	uint16_t request_id_; // network byte order
diff --git a/fastcgi_request.cpp b/fastcgi_request.cpp
index 231600e..aefbbcc 100644
--- a/fastcgi_request.cpp
+++ b/fastcgi_request.cpp
@@ -40,21 +40,11 @@ void FastCGIRequest::WriteBody(const std::string_view& body) {
 }
 
 void FastCGIRequest::End() {
-	FastCGIHeader output_header;
-	FastCGIHeader end_header;
-	FastCGIEndRequest end;
-
 	const auto output_len = out_buf_.ReadMaxLen();
 
-	output_header.version = 1;
-	output_header.type = 6;
-	output_header.SetRequestId(request_id_);
-	output_header.SetContentLength(output_len);
-
-	end_header.version = 1;
-	end_header.type = 3;
-	end_header.SetRequestId(request_id_);
-	end_header.SetContentLength(sizeof(end));
+	FastCGIHeader output_header(6, request_id_, output_len);
+	FastCGIEndRequest end;
+	FastCGIHeader end_header(3, request_id_, sizeof(end));
 
 	std::vector<iovec> vecs{
 		iovec{