diff --git a/src/base/io/json/Json_win.cpp b/src/base/io/json/Json_win.cpp
index 73aff2c5..cb6f02f6 100644
--- a/src/base/io/json/Json_win.cpp
+++ b/src/base/io/json/Json_win.cpp
@@ -28,6 +28,7 @@
 
 #ifdef __GNUC__
 #   include <fcntl.h>
+#   include <sys/stat.h>
 #   include <ext/stdio_filebuf.h>
 #endif
 
@@ -102,7 +103,7 @@ bool xmrig::Json::save(const char *fileName, const rapidjson::Document &doc)
         return false;
     }
 #   elif defined(__GNUC__)
-    const int fd = _wopen(toUtf16(fileName).c_str(), _O_WRONLY | _O_BINARY | _O_CREAT | _O_TRUNC);
+    const int fd = _wopen(toUtf16(fileName).c_str(), _O_WRONLY | _O_BINARY | _O_CREAT | _O_TRUNC, _S_IWRITE);
     if (fd == -1) {
         return false;
     }