diff --git a/lib/std/Io/Dir.zig b/lib/std/Io/Dir.zig
index 577e114c40cffb62ec505f56b7d38c96c7827611..6db13f5c6cd1daeb770436519f5168daeb23eb8a 100644
--- a/lib/std/Io/Dir.zig
+++ b/lib/std/Io/Dir.zig
@@ -373,8 +373,8 @@ pub const Walker = struct {
     /// Leaves the current directory, continuing walking one level up.
     /// If the current entry is a directory entry, then the "current directory"
     /// is the directory pertaining to the current entry.
-    pub fn leave(self: *Walker) void {
-        self.inner.leave();
+    pub fn leave(self: *Walker, io: Io) void {
+        self.inner.leave(io);
     }
 };