diff --git a/samples/common.ant.xml b/samples/common.ant.xml
index 5d0df9e..4de54d0 100755
--- a/samples/common.ant.xml
+++ b/samples/common.ant.xml
@@ -174,7 +174,7 @@
         </targetfiles>
         <sequential>
           <mkdir dir="${samples.scripts}/${sample.upper}" />
-          <java classname="com.google.gwt.user.tools.WebAppCreator" classpath="${gwt.user.jar}:${gwt.dev.jar}" failonerror="true">
+          <java classname="com.google.gwt.user.tools.WebAppCreator" classpath="${gwt.user.jar}:${gwt.dev.jar}" failonerror="true" fork="true">
             <!-- Relative path is important! Paths will be relative in final distro -->
             <sysproperty key="gwt.devjar" value="../../gwt-dev.jar" />
             <arg value="-XnoEclipse" />