diff --git a/src/equipment/service.py b/src/equipment/service.py
index e263302..9623d60 100644
--- a/src/equipment/service.py
+++ b/src/equipment/service.py
@@ -274,7 +274,7 @@ async def get_master_by_assetnum(
         asset_criticality = ens * (0.07 * bpp_system) + (dmn - ens * extra_fuel_cost)
 
         # if NaN or None, return 0
-        if (not joined_maximo_record or not maximo_record) and asset_criticality is None or (isinstance(asset_criticality, float) and math.isnan(asset_criticality)):
+        if (not joined_maximo_record or not maximo_record) or asset_criticality is None or (isinstance(asset_criticality, float) and math.isnan(asset_criticality)):
             asset_criticality = 0.0
 
         setattr(record, "asset_criticality", asset_criticality)