diff --git a/src/GrumPHP/Event/Subscriber/StashUnstagedChangesSubscriber.php b/src/GrumPHP/Event/Subscriber/StashUnstagedChangesSubscriber.php
index 4e5db6848..043f5d932 100644
--- a/src/GrumPHP/Event/Subscriber/StashUnstagedChangesSubscriber.php
+++ b/src/GrumPHP/Event/Subscriber/StashUnstagedChangesSubscriber.php
@@ -191,7 +191,7 @@ private function registerShutdownHandler()
             }
 
             // Don't fail on non-blcoking errors!
-            if (in_array($error['type'], [E_DEPRECATED, E_USER_DEPRECATED])) {
+            if (in_array($error['type'], [E_DEPRECATED, E_USER_DEPRECATED, E_CORE_WARNING, E_CORE_ERROR])) {
                 return;
             }