diff --git a/build.xml b/build.xml
index 489ea75f..7523f0f5 100644
--- a/build.xml
+++ b/build.xml
@@ -153,7 +153,7 @@
         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="768m"/>
+    <property name="java.max.memory" value="1024m"/>
 
     <!--
         Full paths to a couple of temporary file locations.