diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index d1aa71bdf..aea6bb7f3 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<phpunit bootstrap="./Tests/bootstrap.php" color="true">
+<phpunit bootstrap="./Tests/bootstrap.php" colors="true">
 
     <testsuites>
         <testsuite name="LiipImagineBundle test suite">