diff --git a/phpunit.xml b/phpunit.xml
index 22eed2f..09db281 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -7,6 +7,9 @@
     <filter>
         <whitelist processUncoveredFilesFromWhitelist="true">
             <directory suffix=".php">src</directory>
+            <exclude>
+                <directory suffix=".php">src/mustache/cache</directory>
+            </exclude>
         </whitelist>
     </filter>
 </phpunit>
\ No newline at end of file