diff --git a/war/plugin.jelly b/war/plugin.jelly
index bf2fbc9c..b24ae359 100644
--- a/war/plugin.jelly
+++ b/war/plugin.jelly
@@ -37,7 +37,7 @@
 
     <mkdir dir="${maven.war.build.dir}" />
     <war warfile="${maven.war.build.dir}/${maven.war.final.name}"
-         webxml="${maven.war.webxml}">
+         webxml="${maven.war.webxml}" update="true">
 
       <j:if test="${webSourcesPresent == 'true'}">
         <fileset dir="${maven.war.src}">