diff --git a/src/music_box_evolving_conditions.py b/src/music_box_evolving_conditions.py
index 030cd9b7..8fef906c 100644
--- a/src/music_box_evolving_conditions.py
+++ b/src/music_box_evolving_conditions.py
@@ -48,7 +48,7 @@ def from_UI_JSON(cls, UI_JSON, species_list, reaction_list):
 
             pressure = None
             if 'ENV.pressure.Pa' in headers:
-                pressure = float(evol_from_json[i][headers.index('ENV.pressure.Pa')]) / 101325
+                pressure = float(evol_from_json[i][headers.index('ENV.pressure.Pa')])
 
             temperature = None
             if 'ENV.temperature.K' in headers: