diff --git a/build.xml b/build.xml
index 17e80bff..8674967f 100644
--- a/build.xml
+++ b/build.xml
@@ -412,6 +412,7 @@
     -->
     <property name="mda.java.endorsed.dirs" value="${tools.dir}/endorsed"/>
     <property name="mda.basedir" value="${basedir}"/>
+    <property name="mda.mdx.dir" value="${mdx.dir}"/>
 
     <!--
         Build a property set of all the properties to be passed through, with
diff --git a/mdx/at_aconet/verbs.xml b/mdx/at_aconet/verbs.xml
index cc7897d1..4b5a334a 100644
--- a/mdx/at_aconet/verbs.xml
+++ b/mdx/at_aconet/verbs.xml
@@ -25,7 +25,7 @@
     <bean id="serializeImported" parent="SerializationStage">
         <property name="outputFile">
             <bean class="java.io.File">
-                <constructor-arg value="${basedir}/mdx/at_aconet/imported.xml"/>
+                <constructor-arg value="${mdx.dir}/at_aconet/imported.xml"/>
             </bean>
         </property>
     </bean>
diff --git a/mdx/int_cobweb/verbs.xml b/mdx/int_cobweb/verbs.xml
index 063cb743..dde7a217 100644
--- a/mdx/int_cobweb/verbs.xml
+++ b/mdx/int_cobweb/verbs.xml
@@ -25,7 +25,7 @@
     <bean id="serializeImported" parent="SerializationStage">
         <property name="outputFile">
             <bean class="java.io.File">
-                <constructor-arg value="${basedir}/mdx/int_cobweb/imported.xml"/>
+                <constructor-arg value="${mdx.dir}/int_cobweb/imported.xml"/>
             </bean>
         </property>
     </bean>
diff --git a/mdx/int_edugain/verbs.xml b/mdx/int_edugain/verbs.xml
index 7ca9668e..538fbdaa 100644
--- a/mdx/int_edugain/verbs.xml
+++ b/mdx/int_edugain/verbs.xml
@@ -26,7 +26,7 @@
     <bean id="serializeImported" parent="SerializationStage">
         <property name="outputFile">
             <bean class="java.io.File">
-                <constructor-arg value="${basedir}/mdx/int_edugain/imported.xml"/>
+                <constructor-arg value="${mdx.dir}/int_edugain/imported.xml"/>
             </bean>
         </property>
     </bean>
diff --git a/mdx/test/verbs.xml b/mdx/test/verbs.xml
index a3bfd4fb..f5f692df 100644
--- a/mdx/test/verbs.xml
+++ b/mdx/test/verbs.xml
@@ -25,7 +25,7 @@
     <bean id="serializeImported" parent="SerializationStage">
         <property name="outputFile">
             <bean class="java.io.File">
-                <constructor-arg value="${basedir}/mdx/test/imported.xml"/>
+                <constructor-arg value="${mdx.dir}/test/imported.xml"/>
             </bean>
         </property>
     </bean>
diff --git a/mdx/uk/collect.xml b/mdx/uk/collect.xml
index b6f56398..fa987eb6 100644
--- a/mdx/uk/collect.xml
+++ b/mdx/uk/collect.xml
@@ -25,7 +25,7 @@
     <bean id="serializeCollected" parent="SerializationStage">
         <property name="outputFile">
             <bean class="java.io.File">
-                <constructor-arg value="${basedir}/mdx/uk/collected.xml"/>
+                <constructor-arg value="${mdx.dir}/uk/collected.xml"/>
             </bean>
         </property>
     </bean>
diff --git a/mdx/uk/verbs.xml b/mdx/uk/verbs.xml
index 06b2aca4..9441d758 100644
--- a/mdx/uk/verbs.xml
+++ b/mdx/uk/verbs.xml
@@ -62,7 +62,7 @@
                 <bean id="serialize" parent="SerializationStage">
                     <property name="outputFile">
                         <bean class="java.io.File">
-                            <constructor-arg value="${basedir}/mdx/uk/temp.html"/>
+                            <constructor-arg value="${mdx.dir}/uk/temp.html"/>
                         </bean>
                     </property>
                 </bean>
@@ -326,7 +326,7 @@
     <bean id="serializeImported" parent="SerializationStage">
         <property name="outputFile">
             <bean class="java.io.File">
-                <constructor-arg value="${basedir}/mdx/uk/imported.xml"/>
+                <constructor-arg value="${mdx.dir}/uk/imported.xml"/>
             </bean>
         </property>
     </bean>
diff --git a/mdx/us_incommon/verbs.xml b/mdx/us_incommon/verbs.xml
index 3a438a8b..6ca5a631 100644
--- a/mdx/us_incommon/verbs.xml
+++ b/mdx/us_incommon/verbs.xml
@@ -28,7 +28,7 @@
     <bean id="serializeImported" parent="SerializationStage">
         <property name="outputFile">
             <bean class="java.io.File">
-                <constructor-arg value="${basedir}/mdx/us_incommon/imported.xml"/>
+                <constructor-arg value="${mdx.dir}/us_incommon/imported.xml"/>
             </bean>
         </property>
     </bean>