diff --git a/Makefile b/Makefile
index d1b4bfd..1e1d157 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
 example_simple: example_simple.o fastcgi.o fastcgi_conn.o fastcgi_request.o buffer.o
-	g++ -std=gnu++2a -o example_simple example_simple.o fastcgi.o fastcgi_conn.o fastcgi_request.o buffer.o -lgflags -lglog -lpthread
+	clang++ -std=gnu++2a -o example_simple example_simple.o fastcgi.o fastcgi_conn.o fastcgi_request.o buffer.o -lgflags -lglog -lpthread
 
 clean:
 	rm --force exmaple_simple *.o
 
 .cpp.o:
-	g++ -std=gnu++2a -o $@ -c $<
+	clang++ -std=gnu++2a -Wall -Werror -o $@ -c $<
diff --git a/example_simple b/example_simple
index eb82546..a795eb9 100755
Binary files a/example_simple and b/example_simple differ
diff --git a/fastcgi_conn.cpp b/fastcgi_conn.cpp
index 6b375f2..fd2a8f9 100644
--- a/fastcgi_conn.cpp
+++ b/fastcgi_conn.cpp
@@ -100,10 +100,10 @@ void FastCGIConn::WriteBlock(uint8_t type, uint16_t request_id, const std::vecto
 		content_length += vec.iov_len;
 	}
 	header.SetContentLength(content_length);
-	out_vecs.push_back(std::move(iovec{
+	out_vecs.push_back(iovec{
 		.iov_base = &header,
 		.iov_len = sizeof(header),
-	}));
+	});
 
 	for (auto& vec : vecs) {
 		out_vecs.push_back(vec);
@@ -121,10 +121,10 @@ void FastCGIConn::WriteEnd(uint16_t request_id, uint8_t status) {
 	end.SetAppStatus(status);
 
 	std::vector<iovec> vecs;
-	vecs.push_back(std::move(iovec{
+	vecs.push_back(iovec{
 		.iov_base = &end,
 		.iov_len = sizeof(end),
-	}));
+	});
 	WriteBlock(3, request_id, vecs);
 }
 
diff --git a/fastcgi_request.cpp b/fastcgi_request.cpp
index a048cfa..6164083 100644
--- a/fastcgi_request.cpp
+++ b/fastcgi_request.cpp
@@ -9,7 +9,7 @@ FastCGIRequest::FastCGIRequest(uint16_t request_id, FastCGIConn* conn)
 		  conn_(conn) {}
 
 void FastCGIRequest::AddParam(const std::string_view& key, const std::string_view& value) {
-	params_.try_emplace(std::move(std::string(key)), std::move(std::string(value)));
+	params_.try_emplace(std::string(key), std::string(value));
 }
 
 void FastCGIRequest::AddIn(const std::string_view& in) {
@@ -27,37 +27,37 @@ void FastCGIRequest::Write(const std::vector<std::pair<std::string_view, std::st
 	CHECK(headers.empty() || !body_sent_);
 
 	for (const auto& header : headers) {
-		vecs.push_back(std::move(iovec{
+		vecs.push_back(iovec{
 			.iov_base = const_cast<char*>(header.first.data()),
 			.iov_len = header.first.size(),
-		}));
-		vecs.push_back(std::move(iovec{
+		});
+		vecs.push_back(iovec{
 			.iov_base = const_cast<char*>(": "),
 			.iov_len = 2,
-		}));
-		vecs.push_back(std::move(iovec{
+		});
+		vecs.push_back(iovec{
 			.iov_base = const_cast<char*>(header.second.data()),
 			.iov_len = header.second.size(),
-		}));
-		vecs.push_back(std::move(iovec{
+		});
+		vecs.push_back(iovec{
 			.iov_base = const_cast<char*>("\n"),
 			.iov_len = 1,
-		}));
+		});
 	}
 
 	if (!body.empty() && !body_sent_) {
 		body_sent_ = true;
-		vecs.push_back(std::move(iovec{
+		vecs.push_back(iovec{
 			.iov_base = const_cast<char*>("\n"),
 			.iov_len = 1,
-		}));
+		});
 	}
 
 	for (const auto& chunk : body) {
-		vecs.push_back(std::move(iovec{
+		vecs.push_back(iovec{
 			.iov_base = const_cast<char*>(chunk.data()),
 			.iov_len = chunk.size(),
-		}));
+		});
 	}
 
 	conn_->WriteOutput(request_id_, vecs);