diff --git a/setup.py b/setup.py
index 00e1686..6aa62bf 100644
--- a/setup.py
+++ b/setup.py
@@ -58,7 +58,7 @@ def read(*rnames):
              ],
         },
     extras_require = dict(
-        tests = ['zdaemon', 'zc.recipe.filestorage', 'PasteScript'],
+        tests=['zdaemon >= 3.0.0', 'zc.recipe.filestorage', 'PasteScript'],
         ),
     classifiers=[
         "Development Status :: 5 - Production/Stable",
diff --git a/zc/zope3recipes/winctl.py b/zc/zope3recipes/winctl.py
index 30b31d8..b876eae 100644
--- a/zc/zope3recipes/winctl.py
+++ b/zc/zope3recipes/winctl.py
@@ -211,7 +211,7 @@ def do_debug(self, arg):
         self.proc = Popen(program)
         self.zd_pid = self.proc.pid
         self.zd_up = 1
-        self.awhile(lambda: self.zd_pid,
+        self.awhile(lambda n: self.zd_pid,
                     "Zope3 started in debug mode, pid=%(zd_pid)d")
 
     def help_debug(self):
@@ -261,7 +261,7 @@ def do_stop(self, arg):
         self.zd_up = 0
         self.zd_pid = 0
         cpid = win32process.GetCurrentProcessId()
-        self.awhile(lambda: not getChildrenPidsOfPid(cpid), "Zope3 stopped")
+        self.awhile(lambda n: not getChildrenPidsOfPid(cpid), "Zope3 stopped")
 
     def do_kill(self, arg):
         self.do_stop(arg)
@@ -273,7 +273,7 @@ def do_restart(self, arg):
             self.do_start(arg)
         else:
             self.do_start(arg)
-        self.awhile(lambda: self.zd_pid not in (0, pid),
+        self.awhile(lambda n: self.zd_pid not in (0, pid),
                     "Zope3 restarted, pid=%(zd_pid)d")
 
     def show_options(self):
@@ -295,7 +295,7 @@ def do_start(self, arg):
         self.proc = Popen(program)
         self.zd_pid = self.proc.pid
         self.zd_up = 1
-        self.awhile(lambda: self.zd_pid,
+        self.awhile(lambda n: self.zd_pid,
                     "Zope3 started, pid=%(zd_pid)d")
 
     def do_fg(self, arg):