diff --git a/extension.neon b/extension.neon
index 63d8b24f..c4e7b36c 100644
--- a/extension.neon
+++ b/extension.neon
@@ -24,6 +24,7 @@ parameters:
 		- stubs/FormTypeExtensionInterface.stub
 		- stubs/FormTypeInterface.stub
 		- stubs/FormView.stub
+		- stubs/GenericEvent.stub
 		- stubs/HeaderBag.stub
 		- stubs/Node.stub
 		- stubs/NormalizableInterface.stub
diff --git a/stubs/GenericEvent.stub b/stubs/GenericEvent.stub
new file mode 100644
index 00000000..6e57a7df
--- /dev/null
+++ b/stubs/GenericEvent.stub
@@ -0,0 +1,11 @@
+<?php
+
+namespace Symfony\Component\EventDispatcher;
+
+/**
+ * @implements \IteratorAggregate<string, mixed>
+ */
+class GenericEvent implements \IteratorAggregate
+{
+
+}