diff --git a/phpunit.xml b/phpunit.xml
index 6a0ab57..0949fa0 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -7,6 +7,7 @@
         <report>
             <html outputDirectory="build/coverage"/>
             <text outputFile="build/coverage.txt"/>
+            <clover outputFile="build/coverage.xml" />
         </report>
     </coverage>
     <testsuites>