diff --git a/dc-model/src/main/java/de/digitalcollections/model/identifiable/entity/Collection.java b/dc-model/src/main/java/de/digitalcollections/model/identifiable/entity/Collection.java
index 33786378..52e3b802 100644
--- a/dc-model/src/main/java/de/digitalcollections/model/identifiable/entity/Collection.java
+++ b/dc-model/src/main/java/de/digitalcollections/model/identifiable/entity/Collection.java
@@ -87,7 +87,7 @@ public int hashCode() {
   @Override
   protected void init() {
     super.init();
-    if (entities == null) entities = new ArrayList<>();
+    if (entities == null) entities = new ArrayList<>(0);
     if (node == null) node = new Node<>();
   }