diff --git a/gunicorn/arbiter.py b/gunicorn/arbiter.py
index 0fd722ea..31dfb1ec 100644
--- a/gunicorn/arbiter.py
+++ b/gunicorn/arbiter.py
@@ -379,6 +379,7 @@ class Arbiter(object):
                 self.log.info("Worker %s exiting." % worker_pid)
                 try:
                     worker.tmp.close()
+                    os.unlink(worker.tmpname)
                 except:
                     pass
 
@@ -402,6 +403,7 @@ class Arbiter(object):
                 worker = self.WORKERS.pop(pid)
                 try:
                     worker.tmp.close()
+                    os.unlink(worker.tmpname)
                 except:
                     pass
             raise            
diff --git a/gunicorn/worker.py b/gunicorn/worker.py
index 790261cc..6bc06310 100644
--- a/gunicorn/worker.py
+++ b/gunicorn/worker.py
@@ -34,9 +34,9 @@ class Worker(object):
         self.debug = debug
         self.socket = socket
         self.timeout = timeout
-        self.fd, tmpname = tempfile.mkstemp()
+        self.fd, self.tmpname = tempfile.mkstemp(prefix="wgunicorn-")
         self.tmp = os.fdopen(self.fd, "r+b")
-        self.tmpname = tmpname
+        print self.tmpname
         self.app = app
         self.alive = True
         self.log = logging.getLogger(__name__)