1 files changed, 6 insertions, 1 deletions
diff --git a/file.c b/file.c
index 376ce2def1..b1a40c168c 100644
--- a/file.c
+++ b/file.c
@@ -806,9 +806,14 @@ w32_io_info(VALUE *file, BY_HANDLE_FILE_INFORMATION *st)
     }
     else {
 	VALUE tmp;
+	WCHAR *ptr;
+	int len;
 	FilePathValue(*file);
 	tmp = rb_str_encode_ospath(*file);
-	f = CreateFileW((WCHAR *)RSTRING_PTR(tmp), 0,
+	len = MultiByteToWideChar(CP_UTF8, 0, RSTRING_PTR(tmp), -1, NULL, 0);
+	ptr = ALLOCA_N(WCHAR, len);
+	MultiByteToWideChar(CP_UTF8, 0, RSTRING_PTR(tmp), -1, ptr, len);
+	f = CreateFileW(ptr, 0,
 			FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
 			rb_w32_iswin95() ? 0 : FILE_FLAG_BACKUP_SEMANTICS,
 			NULL);