diff --git a/dotCMS/src/main/java/com/dotmarketing/portlets/containers/action/EditContainerAction.java b/dotCMS/src/main/java/com/dotmarketing/portlets/containers/action/EditContainerAction.java
index 18d7bb67074f..49852f241a6a 100644
--- a/dotCMS/src/main/java/com/dotmarketing/portlets/containers/action/EditContainerAction.java
+++ b/dotCMS/src/main/java/com/dotmarketing/portlets/containers/action/EditContainerAction.java
@@ -620,7 +620,8 @@ private void saveContainerStructures (ActionRequest req, Container currentContai
 		}
 
 		//Delete MultiTree for old / unused ContainerStructures
-		final Map<String, Object> newContainerStructures = csList.stream().collect(Collectors.toMap(cs -> cs.getStructureId(), cs -> cs));
+		final Map<String, Object> newContainerStructures = csList.stream().collect(
+				Collectors.toMap(ContainerStructure::getStructureId, (ContainerStructure cs) -> cs));
 		for (ContainerStructure oldCS : oldContainerStructures) {
 
 			if (!newContainerStructures.containsKey(oldCS.getStructureId())) {