diff --git a/Excel/apiDefines.js b/Excel/apiDefines.js
index 66459af9cff21e1c493bb65ecaee6eae36271908..547d6f3083a67e4b9e19c76bce94fc1ad9649dd8 100644
--- a/Excel/apiDefines.js
+++ b/Excel/apiDefines.js
@@ -312,4 +312,4 @@ var c_oAscFormulaRangeBorderColor = [
 var c_oAscLockNameFrozenPane	= "frozenPane";
 var c_oAscLockNameTabColor		= "tabColor";
 var c_oAscMaxColumnWidth		= 255;
-var c_oAscMaxRowHeight			= 255;
+var c_oAscMaxRowHeight			= 409;