diff --git a/examples/map-async/main.zig b/examples/map-async/main.zig
index 56c78d08..55137073 100644
--- a/examples/map-async/main.zig
+++ b/examples/map-async/main.zig
@@ -4,8 +4,8 @@ const gpu = @import("gpu");
 
 pub const App = @This();
 
-// TODO(self-hosted): without a field in this struct, stage3 seems to think `*App` is a `*const App`
-unused: f32,
+// TODO(self-hosted): https://github.com/ziglang/zig/issues/12275
+_unused: i32,
 
 const workgroup_size = 64;
 const buffer_size = 1000;