diff --git a/include/spdlog/sinks/syslog_sink.h b/include/spdlog/sinks/syslog_sink.h
index 56f9329e..1d7c28d0 100644
--- a/include/spdlog/sinks/syslog_sink.h
+++ b/include/spdlog/sinks/syslog_sink.h
@@ -26,13 +26,9 @@
 
 #ifdef __linux__
 
-#include <cassert>
 #include <string>
-#include <mutex>
-#include <atomic>
 #include <syslog.h>
 #include "./sink.h"
-#include "../formatter.h"
 #include "../common.h"
 #include "../details/log_msg.h"