diff --git a/ClosedXML/Excel/Tables/XLTable.cs b/ClosedXML/Excel/Tables/XLTable.cs
index e10c5fe..6eefffc 100644
--- a/ClosedXML/Excel/Tables/XLTable.cs
+++ b/ClosedXML/Excel/Tables/XLTable.cs
@@ -628,8 +628,6 @@
                                           RangeAddress.FirstAddress.ColumnNumber,
                                           RangeAddress.FirstAddress.FixedRow,
                                           RangeAddress.FirstAddress.FixedColumn);
-
-                    HeadersRow().DataType = XLCellValues.Text;
                 }
                 else
                 {
@@ -678,6 +676,9 @@
                     }
                 }
                 _showHeaderRow = value;
+
+                if (_showHeaderRow)
+                    HeadersRow().DataType = XLCellValues.Text;
             }
         }
 
@@ -828,4 +829,4 @@
             return table;
         }
     }
-}
\ No newline at end of file
+}