diff --git a/script/unit-test.py b/script/unit-test.py
index 521dfd38..68719301 100755
--- a/script/unit-test.py
+++ b/script/unit-test.py
@@ -80,7 +80,6 @@ class UT():
 # {{{ setup functions
     @classmethod
     def _filename(cls, desc):
-        return "/tmp/booth-unittest.%s" % desc
         return "/tmp/booth-unittest.%d.%s" % (os.getpid(), desc)