diff --git a/Classes/PHPExcel/Writer/Excel2007/Chart.php b/Classes/PHPExcel/Writer/Excel2007/Chart.php
index 7316d8dc..4b0376cb 100644
--- a/Classes/PHPExcel/Writer/Excel2007/Chart.php
+++ b/Classes/PHPExcel/Writer/Excel2007/Chart.php
@@ -444,7 +444,7 @@ class PHPExcel_Writer_Excel2007_Chart extends PHPExcel_Writer_Excel2007_WriterPa
 									if (is_array($caption))
 										$caption = $caption[0];
 									$objWriter->startElement('a:t');
-										$objWriter->writeAttribute('xml:space', 'preserve');
+//										$objWriter->writeAttribute('xml:space', 'preserve');
 										$objWriter->writeRawData(PHPExcel_Shared_String::ControlCharacterPHP2OOXML( $caption ));
 									$objWriter->endElement();
 
@@ -570,7 +570,7 @@ class PHPExcel_Writer_Excel2007_Chart extends PHPExcel_Writer_Excel2007_WriterPa
 									if (is_array($caption))
 										$caption = $caption[0];
 									$objWriter->startElement('a:t');
-										$objWriter->writeAttribute('xml:space', 'preserve');
+//										$objWriter->writeAttribute('xml:space', 'preserve');
 										$objWriter->writeRawData(PHPExcel_Shared_String::ControlCharacterPHP2OOXML( $caption ));
 									$objWriter->endElement();
 
diff --git a/Classes/PHPExcel/Writer/Excel2007/StringTable.php b/Classes/PHPExcel/Writer/Excel2007/StringTable.php
index 5399ef94..ee77be4f 100644
--- a/Classes/PHPExcel/Writer/Excel2007/StringTable.php
+++ b/Classes/PHPExcel/Writer/Excel2007/StringTable.php
@@ -286,7 +286,7 @@ class PHPExcel_Writer_Excel2007_StringTable extends PHPExcel_Writer_Excel2007_Wr
 
 				// t
 				$objWriter->startElement($prefix.'t');
-					$objWriter->writeAttribute('xml:space', 'preserve');
+//					$objWriter->writeAttribute('xml:space', 'preserve');	//	Excel2010 accepts, Excel2007 complains
 					$objWriter->writeRawData(PHPExcel_Shared_String::ControlCharacterPHP2OOXML( $element->getText() ));
 				$objWriter->endElement();
 
diff --git a/changelog.txt b/changelog.txt
index 6d0c51bc..46765c03 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -93,6 +93,7 @@ Fixed in develop branch:
 - Bugfix:   (MBaker)     Work item 18370 - Error loading xlsx file with column breaks
 - Bugfix:   (MBaker)     OOCalc Reader now handles percentage and currency data types
 - Bugfix:   (MBaker)     OOCalc Reader modified to process number-rows-repeated
+- Bugfix:   (MBaker)     Work item 18377 - Chart Title compatibility on Excel 2007
 
 
 2012-05-19 (v1.7.7):