diff --git a/iwla.py b/iwla.py
index 60572ca..4378a02 100755
--- a/iwla.py
+++ b/iwla.py
@@ -656,6 +656,7 @@ class IWLA(object):
                 return False
             self.analyse_started = True
             if cur_time.tm_mon != t.tm_mon:
+                self._generateDayStats()
                 self._generateMonthStats()
                 self.current_analysis = self._deserialize(self.getDBFilename(t)) or self._clearVisits()
             elif cur_time.tm_mday != t.tm_mday: