diff --git a/src/tests/antunit/core/extension-point-test.xml b/src/tests/antunit/core/extension-point-test.xml
index a3f504e9f..8c0dbdb96 100644
--- a/src/tests/antunit/core/extension-point-test.xml
+++ b/src/tests/antunit/core/extension-point-test.xml
@@ -89,73 +89,73 @@
   </target>
 
   <target name="testExtensionPointInIncludedBuildfileWithNestedInclude">
-    <mkdir dir="output"/>
-    <echo file="output/abstract-compile.xml"><![CDATA[
+    <mkdir dir="${output}"/>
+    <echo file="${output}/abstract-compile.xml"><![CDATA[
 <project name="abstract-compile">
   <extension-point name="compile"/>
 </project>]]></echo>
-    <echo file="output/compile-java.xml"><![CDATA[
+    <echo file="${output}/compile-java.xml"><![CDATA[
 <project name="compile-java">
   <include file="abstract-compile.xml" as="abstract-compile"/>
   <target name="compile-java" extensionOf="abstract-compile.compile">
     <echo>in compile java</echo>
   </target>
 </project>]]></echo>
-    <echo file="output/build.xml"><![CDATA[
+    <echo file="${output}/build.xml"><![CDATA[
 <project name="master">
   <include file="compile-java.xml" as="compile"/>
 </project>]]></echo>
     <!-- here prefix should be concatened from each include first 
          "compile" then "abstract-compile"-->
-    <ant dir="output" target="compile.abstract-compile.compile"/>
+    <ant dir="${output}" target="compile.abstract-compile.compile"/>
     <au:assertLogContains text="in compile java"/>
 
   </target>
 
   <target name="testExtensionPointInIncludedBuildfileWithNestedImport">
-    <mkdir dir="output"/>
-    <echo file="output/abstract-compile.xml"><![CDATA[
+    <mkdir dir="${output}"/>
+    <echo file="${output}/abstract-compile.xml"><![CDATA[
 <project name="abstract-compile">
   <extension-point name="compile"/>
 </project>]]></echo>
-    <echo file="output/compile-java.xml"><![CDATA[
+    <echo file="${output}/compile-java.xml"><![CDATA[
 <project name="compile-java">
   <import file="abstract-compile.xml"/>
   <target name="compile-java" extensionOf="compile">
     <echo>in compile java</echo>
   </target>
 </project>]]></echo>
-    <echo file="output/build.xml"><![CDATA[
+    <echo file="${output}/build.xml"><![CDATA[
 <project name="master">
   <include file="compile-java.xml" as="compile"/>
 </project>]]></echo>
     <!-- here the prefix should be "compile" as the import containing
          the extension point is done inside an include using "compile"
          as prefix -->
-    <ant dir="output" target="compile.compile"/>
+    <ant dir="${output}" target="compile.compile"/>
     <au:assertLogContains text="in compile java"/>
 
   </target>
 
   <target name="testExtensionPointInImportedBuildfileWithNestedImport">
-    <mkdir dir="output"/>
-    <echo file="output/abstract-compile.xml"><![CDATA[
+    <mkdir dir="${output}"/>
+    <echo file="${output}/abstract-compile.xml"><![CDATA[
 <project name="abstract-compile">
   <extension-point name="compile"/>
 </project>]]></echo>
-    <echo file="output/compile-java.xml"><![CDATA[
+    <echo file="${output}/compile-java.xml"><![CDATA[
 <project name="compile-java">
   <import file="abstract-compile.xml"/>
   <target name="compile-java" extensionOf="compile">
     <echo>in compile java</echo>
   </target>
 </project>]]></echo>
-    <echo file="output/build.xml"><![CDATA[
+    <echo file="${output}/build.xml"><![CDATA[
 <project name="master">
   <import file="compile-java.xml"/>
 </project>]]></echo>
     <!-- here extension point should not be prefixed at all -->
-    <ant dir="output" target="compile"/>
+    <ant dir="${output}" target="compile"/>
     <au:assertLogContains text="in compile java"/>
 
   </target>