diff --git a/npsat_manager/models.py b/npsat_manager/models.py
index 7b7d663..d4161b4 100644
--- a/npsat_manager/models.py
+++ b/npsat_manager/models.py
@@ -332,7 +332,7 @@ def input_message(self):
         msg += f" unsatScen {self.unsat_scenario.mantis_id}"
         msg += f" wellType {self.welltype_scenario.mantis_id}"
         msg += f" unsatWC {self.water_content}"
-        msg += f" porosity {self.porosity}"
+        msg += f" por {self.porosity}"
 
         regions = list(
             self.regions.all()