diff --git a/build.xml b/build.xml
index 7cf04651ae5e90031dc4afed8785457de0500313..6e66a4d09ccedbd38dff533238d6fa6df74f1fc0 100644
--- a/build.xml
+++ b/build.xml
@@ -3866,13 +3866,13 @@ app.replica.args=-mode scene -mipmaps -antialias 8 -anisotropicDegree 16 -verbos
                     <mapper dir="." type="glob" from="*.x3d" to="*.html"/>
                     <sequential>
                         <echo message="check well-formedness of original model..."/>
-                        <xmlvalidate file="@{file.path.name}.x3d" failonerror="false" warn="true" lenient="true"/>
+                        <xmlvalidate file="@{file.path.name}" failonerror="false" warn="true" lenient="true"/>
                         <echo message="check DTD validation  of original model..."/>
-                        <xmlvalidate file="@{file.path.name}.x3d" failonerror="false" warn="true">
+                        <xmlvalidate file="@{file.path.name}" failonerror="false" warn="true">
                             <xmlcatalog refid="X3dCatalog"/>
                         </xmlvalidate>
                         <echo message="check schema validation of original model..."/>
-                        <schemavalidate file="@{file.path.name}.x3d" failonerror="false" fullchecking="false" lenient="false" warn="true">
+                        <schemavalidate file="@{file.path.name}" failonerror="false" fullchecking="false" lenient="false" warn="true">
                             <xmlcatalog refid="X3dCatalog"/>
                         </schemavalidate>
                         <echo message="check schematron validation of original model..."/>