diff --git a/docs/faq.html b/docs/faq.html
index 7af6c815b..332820109 100644
--- a/docs/faq.html
+++ b/docs/faq.html
@@ -1129,6 +1129,14 @@ shell-prompt> m4 foo.m4 > foo
           A version of this problem happens with jars that are in the classpath
           that include an embedded copy of ant classes.
           An example of this is some copies of weblogic.jar.
+        </p>
+                        <p>
+        One can check if this is the case by doing (on unix/sh):
+        <code><pre>
+        unset CLASSPATH
+        ant -version
+        </pre>
+        </code>
         </p>
                     <p class="faq">
       <a name="NoClassDefFoundError"></a>
diff --git a/xdocs/faq.xml b/xdocs/faq.xml
index 8ee018856..444c38f90 100644
--- a/xdocs/faq.xml
+++ b/xdocs/faq.xml
@@ -808,6 +808,14 @@ shell-prompt> m4 foo.m4 > foo
           that include an embedded copy of ant classes.
           An example of this is some copies of weblogic.jar.
         </p>
+        <p>
+        One can check if this is the case by doing (on unix/sh):
+        <code><pre>
+        unset CLASSPATH
+        ant -version
+        </pre>
+        </code>
+        </p>
       </answer>
     </faq>