diff --git a/lib/std/Thread.zig b/lib/std/Thread.zig
index 04dc1f6317d594b338e109ab5d4715228db46277..c984038f46ebf9572d2c581cd2dd95c5f92bffe1 100644
--- a/lib/std/Thread.zig
+++ b/lib/std/Thread.zig
@@ -1811,6 +1811,7 @@ test "Thread.getCurrentId" {
 
 test "thread local storage" {
     if (builtin.single_threaded) return error.SkipZigTest;
+    if (@sizeOf(usize) == 4) return error.SkipZigTest; // https://github.com/ziglang/zig/issues/25498
 
     const thread1 = try Thread.spawn(.{}, testTls, .{});
     const thread2 = try Thread.spawn(.{}, testTls, .{});