diff --git a/PROMS/fmtxml/AppendPlantSpecific.cs b/PROMS/fmtxml/AppendPlantSpecific.cs
index e7119ff7..7a74da51 100644
--- a/PROMS/fmtxml/AppendPlantSpecific.cs
+++ b/PROMS/fmtxml/AppendPlantSpecific.cs
@@ -7,6 +7,18 @@ namespace fmtxml
 {
 	public partial class FmtFileToXml
 	{
+		public void AddPlantSpecificOverrideInheritance(string genFileName, ref FormatData fmtdata)
+		{
+			string genName = genFileName.Substring(genFileName.LastIndexOf('\\') + 1);
+			//genName = genName.Substring(0, genName.IndexOf('.'));
+			switch (genName.ToUpper())
+			{
+				case "SUM.FMT":
+					AddSUMOverridefmt(ref fmtdata);
+					break;
+			}
+		}
+
 		public void AddPlantSpecific(string genFileName, ref FormatData fmtdata)
 		{
 			string genName = genFileName.Substring(genFileName.LastIndexOf('\\') + 1);