diff --git a/include/spdlog/details/os.h b/include/spdlog/details/os.h
index 09fba05b..0f01ffb9 100644
--- a/include/spdlog/details/os.h
+++ b/include/spdlog/details/os.h
@@ -13,14 +13,14 @@
 
 #ifdef _WIN32
 
-# ifndef NOMINMAX
+#ifndef NOMINMAX
 #define NOMINMAX //prevent windows redefining min/max
 #endif 
 
-# ifndef WIN32_LEAN_AND_MEAN
-#  define WIN32_LEAN_AND_MEAN
-# endif
-# include <windows.h>
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
 
 #ifdef __MINGW32__
 #include <share.h>