diff --git a/src/root.zig b/src/root.zig
index f7b243c..cfcf1cb 100644
--- a/src/root.zig
+++ b/src/root.zig
@@ -25,7 +25,7 @@ fn logFn(
         }, 0o600) catch @panic("Could not append to log file");
         defer std.posix.close(fd);
 
-        var buffer = std.Io.File.Writer.init(.{ .handle = fd }, std.debug.debug_threaded_io, &buf);
+        var buffer = std.Io.File.Writer.init(.{ .handle = fd }, std.Options.debug_io, &buf);
         var writer = &buffer.interface;
         defer writer.flush() catch unreachable;