diff --git a/src/Builder/BuilderCollection.php b/src/Builder/BuilderCollection.php
index 0997971..81072af 100644
--- a/src/Builder/BuilderCollection.php
+++ b/src/Builder/BuilderCollection.php
@@ -26,6 +26,8 @@ use Traversable;
 
 /**
  * A collection of UuidBuilderInterface objects
+ *
+ * @extends AbstractCollection<UuidBuilderInterface>
  */
 class BuilderCollection extends AbstractCollection
 {