diff --git a/build.vm.xml b/build.vm.xml
index b5cd7b0..9a7395b 100644
--- a/build.vm.xml
+++ b/build.vm.xml
@@ -68,7 +68,10 @@
   <exec dir="${repodir}" executable="phpcpd">
    <arg line="--log-pmd ${logdir}/pmd-cpd.xml
         --names *.php
-        --exclude ${repodir}/library/Zend/, ${repodir}/application/language/, ${repodir}/library/ZendX/, ${repodir}/tests/
+        --exclude ${repodir}/library/Zend/
+        --exclude ${repodir}/application/language/
+        --exclude ${repodir}/library/ZendX/
+        --exclude ${repodir}/tests/
         ./" />
   </exec>
  </target>