diff --git a/lib/file.c b/lib/file.c
index 826bed6d80..6937069074 100644
--- a/lib/file.c
+++ b/lib/file.c
@@ -343,7 +343,10 @@ static CURLcode file_upload(struct Curl_easy *data,
   else
     mode |= O_TRUNC;
 
-#if (defined(ANDROID) || defined(__ANDROID__)) && \
+#ifdef _WIN32
+  fd = curlx_open(file->path, mode,
+                  data->set.new_file_perms & (_S_IREAD | _S_IWRITE));
+#elif (defined(ANDROID) || defined(__ANDROID__)) && \
   (defined(__i386__) || defined(__arm__))
   fd = curlx_open(file->path, mode, (mode_t)data->set.new_file_perms);
 #else