diff --git a/benchmarks/__init__.py b/benchmarks/__init__.py
index 7082f97..65fc54e 100644
--- a/benchmarks/__init__.py
+++ b/benchmarks/__init__.py
@@ -28,7 +28,7 @@ atexit.register(remove_temp)
 def bench_temp_file(filename):
     global tmpdir
     if tmpdir is None:
-        tmpdir = py.path.local.mkdtemp("mcedit_bench")
+        tmpdir = py.path.local.mkdtemp()
 
     return copy_temp_file(tmpdir, filename)