diff --git a/phpunit.xml b/phpunit.xml
index 58180c7..ed9fd87 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -12,6 +12,7 @@
         processIsolation="false"
         stopOnFailure="false"
         syntaxCheck="false"
+        incrementSarcasm="true"
         bootstrap="vendor/autoload.php">
 
     <testsuites>