diff --git a/include/ioh/common/file.hpp b/include/ioh/common/file.hpp
index c4793c38..74c38cbd 100644
--- a/include/ioh/common/file.hpp
+++ b/include/ioh/common/file.hpp
@@ -7,9 +7,12 @@
 
 #include <fcntl.h>
 #include <stdio.h>
-#include <unistd.h>
 #include <sys/stat.h>
 
+#ifndef _MSC_VER
+#include <unistd.h>
+#endif
+
 #include <condition_variable>
 #include <fstream>
 #include <mutex>
@@ -644,7 +647,7 @@ namespace ioh::common::file
         }
     };
 #else
-    typename DirectIOWriter = CachedFWriter;
+    using DirectIOWriter = CachedFWriter;
 #endif