diff --git a/rpmlint/lint.py b/rpmlint/lint.py
index 36de2fa2c..7e60f776c 100644
--- a/rpmlint/lint.py
+++ b/rpmlint/lint.py
@@ -26,7 +26,7 @@ def __init__(self, options):
         self.options = options
         self.packages_checked = 0
         self.specfiles_checked = 0
-        self.check_duration = defaultdict(lambda: 0)
+        self.check_duration = defaultdict(int)
         if options['config']:
             self.config = Config(options['config'])
         else: