diff --git a/timebot.py b/timebot.py
index f3318fb..78d1e3c 100644
--- a/timebot.py
+++ b/timebot.py
@@ -273,7 +273,7 @@ class TimeBot:
     def smart_punch(self, punch_datetime):
         last_punch = tb.mobatime_api.get_entries(1, punch_datetime.replace(hour=0, minute=0, second=0, microsecond=0))
         method = None
-        if not last_punch:
+        if not last_punch or last_punch[0]["entryNumber"] is None:
             logger.debug("could not detect any time entry for today... punching in")
             method = "punch_in"
         elif last_punch[0]["entryNumber"] == COMING_ENTRY_CODE_ID: