diff --git a/build.xml b/build.xml
index 5fd88bd37550..118d3d682e86 100644
--- a/build.xml
+++ b/build.xml
@@ -84,7 +84,7 @@
     <property name="maven-repository-id" value="apache.snapshots.https"/>
 
     <property name="test.timeout" value="60000" />
-    <property name="test.long.timeout" value="300000" />
+    <property name="test.long.timeout" value="600000" />
 
     <!-- http://cobertura.sourceforge.net/ -->
     <property name="cobertura.version" value="1.9.4.1"/>