diff --git a/include/spdlog/sinks/base_sink.h b/include/spdlog/sinks/base_sink.h
index d57b2167..4141c962 100644
--- a/include/spdlog/sinks/base_sink.h
+++ b/include/spdlog/sinks/base_sink.h
@@ -15,8 +15,6 @@
 #include "spdlog/formatter.h"
 #include "spdlog/sinks/sink.h"
 
-#include <mutex>
-
 namespace spdlog {
 namespace sinks {
 template<class Mutex>