diff --git a/lib/std/mutex.zig b/lib/std/mutex.zig
index 7fbe4fde18..30ac835f9f 100644
--- a/lib/std/mutex.zig
+++ b/lib/std/mutex.zig
@@ -306,12 +306,6 @@ const TestContext = struct {
 };
 
 test "std.Mutex" {
-    var plenty_of_memory = try std.heap.page_allocator.alloc(u8, 300 * 1024);
-    defer std.heap.page_allocator.free(plenty_of_memory);
-
-    var fixed_buffer_allocator = std.heap.ThreadSafeFixedBufferAllocator.init(plenty_of_memory);
-    var a = &fixed_buffer_allocator.allocator;
-
     var mutex = Mutex.init();
     defer mutex.deinit();