diff --git a/ClosedXML/Excel/XLWorkbook_Save.cs b/ClosedXML/Excel/XLWorkbook_Save.cs
index d32fa98..16ce6fe 100644
--- a/ClosedXML/Excel/XLWorkbook_Save.cs
+++ b/ClosedXML/Excel/XLWorkbook_Save.cs
@@ -2039,7 +2039,7 @@
                     pf.Axis = PivotTableAxisValues.AxisPage;
                     pageFields.AppendChild(new PageField {Hierarchy = -1, Field = pt.Fields.IndexOf(xlpf)});
                 }
-                else if (pt.Values.Any(p => p.CustomName == xlpf.SourceName))
+                else if (pt.Values.Any(p => p.SourceName == xlpf.SourceName && p.CustomName != xlpf.SourceName))
                 {
                     pf.DataField = true;
                 }