diff --git a/dspace-api/src/main/java/org/dspace/subscriptions/SubscriptionEmailNotificationServiceImpl.java b/dspace-api/src/main/java/org/dspace/subscriptions/SubscriptionEmailNotificationServiceImpl.java
index 2a30b89af3f5..ab19139e7f9c 100644
--- a/dspace-api/src/main/java/org/dspace/subscriptions/SubscriptionEmailNotificationServiceImpl.java
+++ b/dspace-api/src/main/java/org/dspace/subscriptions/SubscriptionEmailNotificationServiceImpl.java
@@ -117,6 +117,7 @@ public void perform(Context context, DSpaceRunnableHandler handler, String subsc
                                               collectionsItems, items);
                             communityItems.clear();
                             collectionsItems.clear();
+                            items.clear();
                         }
                     } else {
                         //in the end of the iteration