diff --git a/tests/PuphpeteerTest.php b/tests/PuphpeteerTest.php
index 48bacd4..1e6b6a2 100644
--- a/tests/PuphpeteerTest.php
+++ b/tests/PuphpeteerTest.php
@@ -133,7 +133,7 @@ public function check_all_resources_are_supported()
         if (empty($incompleteResources)) return;
 
         $incompleteText = "The following resources have not been tested properly, probably"
-            ." for good reasons but you might want to have a look:";
+            ." for good reasons but you might want to have a look:\n";
 
         foreach ($incompleteResources as $name => $resource) {
             if ($resource instanceof UntestableResource) {