diff --git a/phpunit.xml b/phpunit.xml
index 422eeac6..63454441 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -14,4 +14,10 @@
             <directory suffix=".php">./tests/</directory>
         </testsuite>
     </testsuites>
+
+    <coverage processUncoveredFiles="true">
+        <include>
+            <directory suffix=".php">src</directory>
+        </include>
+    </coverage>
 </phpunit>