diff --git a/src/scan.zig b/src/scan.zig
index 03dfdf6..fdb0e3a 100644
--- a/src/scan.zig
+++ b/src/scan.zig
@@ -145,9 +145,9 @@ pub fn statAt(parent: std.Io.Dir, name: [:0]const u8, follow: bool, symlink: ?*b
 fn isCacheDir(dir: std.Io.Dir) bool {
     const sig = "Signature: 8a477f597d28d172789f06886806bc55";
     const f = dir.openFile(main.io, "CACHEDIR.TAG", .{}) catch return false;
-    defer f.close();
+    defer f.close(main.io);
     var buf: [sig.len]u8 = undefined;
-    const len = f.readAll(&buf) catch return false;
+    const len = f.readPositionalAll(main.io, &buf, 0) catch return false;
     return len == sig.len and std.mem.eql(u8, &buf, sig);
 }