diff --git a/build.xml b/build.xml
index 29cd3359..3a7e1428 100644
--- a/build.xml
+++ b/build.xml
@@ -188,7 +188,7 @@
         be more than some invocations require, but there's no harm in having a higher
         limit for all of them.
     -->
-	<property name="java.max.memory" value="640m"/>
+	<property name="java.max.memory" value="768m"/>
 	   
 	<!--
 		*************************************************