diff --git a/caluma/caluma_analytics/simple_table.py b/caluma/caluma_analytics/simple_table.py
index 1990646c3..74b9b0633 100644
--- a/caluma/caluma_analytics/simple_table.py
+++ b/caluma/caluma_analytics/simple_table.py
@@ -824,7 +824,7 @@ def parse_value(self, value):
         same datatype which leads to inconsistency. E.g versions < 12 returns a
         float while later versions return a decimal.
         """
-        return int(value)
+        return int(value) if value is not None else None
 
 
 class BaseStartingObject: