diff --git a/ClosedXML/Excel/PivotTables/IXLPivotTable.cs b/ClosedXML/Excel/PivotTables/IXLPivotTable.cs
index 2afdd8c..6f0241a 100644
--- a/ClosedXML/Excel/PivotTables/IXLPivotTable.cs
+++ b/ClosedXML/Excel/PivotTables/IXLPivotTable.cs
@@ -5,6 +5,7 @@
 {
     public enum XLPivotTableTheme
     {
+        None,
         PivotStyleDark1,
         PivotStyleDark10,
         PivotStyleDark11,
diff --git a/ClosedXML/Excel/XLWorkbook_Load.cs b/ClosedXML/Excel/XLWorkbook_Load.cs
index b558cb2..c0274cc 100644
--- a/ClosedXML/Excel/XLWorkbook_Load.cs
+++ b/ClosedXML/Excel/XLWorkbook_Load.cs
@@ -584,11 +584,15 @@
                             var pivotTableStyle = pivotTableDefinition.GetFirstChild<PivotTableStyle>();
                             if (pivotTableStyle != null)
                             {
-                                pt.Theme = (XLPivotTableTheme)Enum.Parse(typeof(XLPivotTableTheme), pivotTableStyle.Name);
-                                pt.ShowRowHeaders = pivotTableStyle.ShowRowHeaders;
-                                pt.ShowColumnHeaders = pivotTableStyle.ShowColumnHeaders;
-                                pt.ShowRowStripes = pivotTableStyle.ShowRowStripes;
-                                pt.ShowColumnStripes = pivotTableStyle.ShowColumnStripes;
+                                if (pivotTableStyle.Name != null)
+                                    pt.Theme = (XLPivotTableTheme)Enum.Parse(typeof(XLPivotTableTheme), pivotTableStyle.Name);
+                                else
+                                    pt.Theme = XLPivotTableTheme.None;
+
+                                pt.ShowRowHeaders = OpenXmlHelper.GetBooleanValueAsBool(pivotTableStyle.ShowRowHeaders, false);
+                                pt.ShowColumnHeaders = OpenXmlHelper.GetBooleanValueAsBool(pivotTableStyle.ShowColumnHeaders, false);
+                                pt.ShowRowStripes = OpenXmlHelper.GetBooleanValueAsBool(pivotTableStyle.ShowRowStripes, false);
+                                pt.ShowColumnStripes = OpenXmlHelper.GetBooleanValueAsBool(pivotTableStyle.ShowColumnStripes, false);
                             }
 
                             // Subtotal configuration
diff --git a/ClosedXML/Excel/XLWorkbook_Save.cs b/ClosedXML/Excel/XLWorkbook_Save.cs
index 9e92af5..40e1ae5 100644
--- a/ClosedXML/Excel/XLWorkbook_Save.cs
+++ b/ClosedXML/Excel/XLWorkbook_Save.cs
@@ -2756,14 +2756,18 @@
                 pivotTableDefinition.AppendChild(dataFields);
             }
 
-            pivotTableDefinition.AppendChild(new PivotTableStyle
+            var pts = new PivotTableStyle
             {
-                Name = Enum.GetName(typeof(XLPivotTableTheme), pt.Theme),
                 ShowRowHeaders = pt.ShowRowHeaders,
                 ShowColumnHeaders = pt.ShowColumnHeaders,
                 ShowRowStripes = pt.ShowRowStripes,
                 ShowColumnStripes = pt.ShowColumnStripes
-            });
+            };
+
+            if (pt.Theme != XLPivotTableTheme.None)
+                pts.Name = Enum.GetName(typeof(XLPivotTableTheme), pt.Theme);
+
+            pivotTableDefinition.AppendChild(pts);
 
             #region Excel 2010 Features
 
diff --git a/ClosedXML_Tests/Excel/PivotTables/XLPivotTableTests.cs b/ClosedXML_Tests/Excel/PivotTables/XLPivotTableTests.cs
index eddd1a3..2ea11de 100644
--- a/ClosedXML_Tests/Excel/PivotTables/XLPivotTableTests.cs
+++ b/ClosedXML_Tests/Excel/PivotTables/XLPivotTableTests.cs
@@ -276,6 +276,21 @@
             }
         }
 
+        [Test]
+        public void PivotTableWithNoneTheme()
+        {
+            using (var stream = TestHelper.GetStreamFromResource(TestHelper.GetResourcePath(@"Other\PivotTableReferenceFiles\PivotTableWithNoneTheme\inputfile.xlsx")))
+            using (var ms = new MemoryStream())
+            {
+                TestHelper.CreateAndCompare(() =>
+                {
+                    var wb = new XLWorkbook(stream);
+                    wb.SaveAs(ms);
+                    return wb;
+                }, @"Other\PivotTableReferenceFiles\PivotTableWithNoneTheme\outputfile.xlsx");
+            }
+        }
+
         private static void SetFieldOptions(IXLPivotField field, bool withDefaults)
         {
             field.SubtotalsAtTop = !withDefaults;
diff --git a/ClosedXML_Tests/Resource/Other/PivotTableReferenceFiles/PivotTableWithNoneTheme/inputfile.xlsx b/ClosedXML_Tests/Resource/Other/PivotTableReferenceFiles/PivotTableWithNoneTheme/inputfile.xlsx
new file mode 100644
index 0000000..915c374
--- /dev/null
+++ b/ClosedXML_Tests/Resource/Other/PivotTableReferenceFiles/PivotTableWithNoneTheme/inputfile.xlsx
Binary files differ
diff --git a/ClosedXML_Tests/Resource/Other/PivotTableReferenceFiles/PivotTableWithNoneTheme/outputfile.xlsx b/ClosedXML_Tests/Resource/Other/PivotTableReferenceFiles/PivotTableWithNoneTheme/outputfile.xlsx
new file mode 100644
index 0000000..3774c71
--- /dev/null
+++ b/ClosedXML_Tests/Resource/Other/PivotTableReferenceFiles/PivotTableWithNoneTheme/outputfile.xlsx
Binary files differ