diff --git a/build.xml b/build.xml
index 3fac5f5a699b480441c8296d08715bfe2cda2650..87fc981ad37594f64ecda001e0ae836bfa463bec 100644
--- a/build.xml
+++ b/build.xml
@@ -729,6 +729,7 @@ Key references:
                         select="\3"/>
             <!-- <echo>delete ${relative.path1}/${relative.path2}/${name.short}.html</echo> -->
                 <delete file="${relative.path1}/${relative.path2}/${name.short}.html"/>
+                <delete file="${relative.path1}/${relative.path2}/${name.short}.svg"/><!-- Extrusion crossSection diagram -->
             </sequential>
         </for>
         <echo message="consider clean.SVG if crossSection figures also need removal"/>