diff --git a/PROMS/fmtxml/FmtFileToXml.cs b/PROMS/fmtxml/FmtFileToXml.cs
index c10ab959..2c4f123e 100644
--- a/PROMS/fmtxml/FmtFileToXml.cs
+++ b/PROMS/fmtxml/FmtFileToXml.cs
@@ -4933,7 +4933,7 @@ namespace fmtxml
 
 			if (mainFmt.ROData.AllUnits != null && mainFmt.ROData.AllUnits == subFmt.ROData.AllUnits) subFmt.ROData.AllUnits = "null";
 			if (mainFmt.ROData.UpRoAftrDash != null && mainFmt.ROData.UpRoAftrDash == subFmt.ROData.UpRoAftrDash) subFmt.ROData.UpRoAftrDash = "null";
-			if (mainFmt.ROData.UpcaseAllRoUnits != null && mainFmt.ROData.UpcaseAllRoUnits == subFmt.ROData.AllUnits) subFmt.ROData.UpcaseAllRoUnits = "null";
+			if (mainFmt.ROData.UpcaseAllRoUnits != null && mainFmt.ROData.UpcaseAllRoUnits == subFmt.ROData.UpcaseAllRoUnits) subFmt.ROData.UpcaseAllRoUnits = "null";
 			if (mainFmt.ROData.CapHighRo != null && mainFmt.ROData.CapHighRo == subFmt.ROData.CapHighRo) subFmt.ROData.CapHighRo = "null";
 			if (mainFmt.ROData.CapRoIfLastLower != null && mainFmt.ROData.CapRoIfLastLower == subFmt.ROData.CapRoIfLastLower) subFmt.ROData.CapRoIfLastLower = "null";
 			if (mainFmt.ROData.UpRoIfPrevUpper != null && mainFmt.ROData.UpRoIfPrevUpper == subFmt.ROData.UpRoIfPrevUpper) subFmt.ROData.UpRoIfPrevUpper = "null";