diff --git a/build.xml b/build.xml
index a32698266bd..dc262b69a81 100644
--- a/build.xml
+++ b/build.xml
@@ -80,6 +80,8 @@
     <pathconvert pathsep="${line.separator}" dirsep="/" property="validate.patternsFound" setonempty="false">
       <fileset dir="${validate.currDir}">
         <include name="**/*.java"/>
+        <include name="**/*.py"/>
+        <include name="**/*.xml"/>
         <exclude name="**/backwards/**"/>
         <or>
           <containsregexp expression="@author\b" casesensitive="yes"/>