diff --git a/Core/Charter/CurveDataConverter.cs b/Core/Charter/CurveDataConverter.cs
index 05d6591..d40db56 100644
--- a/Core/Charter/CurveDataConverter.cs
+++ b/Core/Charter/CurveDataConverter.cs
@@ -92,7 +92,7 @@ namespace LeafWeb.Core.Charter
 			AddXyIfInRange(item.CO2ct, item.At, paramSet.AtChloroData.Add); // At(y),CO2ct(x)
 
 			AddXyIfInRange(item.CO2i, item.Ac, paramSet.AcInterData.Add); // Ac(y),CO2i(x)
-			AddXyIfInRange(item.CO2i, item.Aj, paramSet.AcInterData.Add); // Aj(y),CO2i(x)
+			AddXyIfInRange(item.CO2i, item.Aj, paramSet.AjInterData.Add); // Aj(y),CO2i(x)
 			AddXyIfInRange(item.CO2i, item.At, paramSet.AtInterData.Add); // Aj(y),CO2i(x)
 		}