1 files changed, 1 insertions, 1 deletions
diff --git a/server/src/main/java/com/vaadin/ui/declarative/DesignAttributeHandler.java b/server/src/main/java/com/vaadin/ui/declarative/DesignAttributeHandler.java
index 5b5887316c..357a9fbdf3 100644
--- a/server/src/main/java/com/vaadin/ui/declarative/DesignAttributeHandler.java
+++ b/server/src/main/java/com/vaadin/ui/declarative/DesignAttributeHandler.java
@@ -449,7 +449,7 @@ public class DesignAttributeHandler implements Serializable {
         }
 
         private Collection<String> getAttributes() {
-            ArrayList<String> attributes = new ArrayList<>();
+            List<String> attributes = new ArrayList<>();
             attributes.addAll(accessMethods.keySet());
             return attributes;
         }