diff --git a/kpi/models/kpi.py b/kpi/models/kpi.py
index 2ff3fc5f16..67c2b8aec6 100644
--- a/kpi/models/kpi.py
+++ b/kpi/models/kpi.py
@@ -163,7 +163,7 @@ def _get_kpi_value(self):
                 if is_one_value(res):
                     kpi_value = res[0]["value"]
             elif self.kpi_type == "python":
-                kpi_value = safe_eval(self.kpi_code, {"self": self})
+                kpi_value = safe_eval(self.kpi_code, {"self": self, "datetime": fields.datetime})
         if isinstance(kpi_value, dict):
             res = kpi_value
         else: