diff --git a/app/src/main/java/org/cutem/cutecalendar/model/TodoItemFactory.java b/app/src/main/java/org/cutem/cutecalendar/model/TodoItemFactory.java
index bdab7cd..952fa68 100644
--- a/app/src/main/java/org/cutem/cutecalendar/model/TodoItemFactory.java
+++ b/app/src/main/java/org/cutem/cutecalendar/model/TodoItemFactory.java
@@ -83,11 +83,11 @@ public class TodoItemFactory {
 
 
     public TodoItemFactory copy(@NotNull TodoItem item) {
-        beginTime(item.getBgn());
-        endTime(item.getEnd());
-        stringProperties(item.getStringPropertiesMap());
-        type(item.getType());
-        personnel(Arrays.asList(item.getPersonnel()));
+        this.beginTime(item.getBgn()).
+                endTime(item.getEnd()).
+                stringProperties(item.getStringPropertiesMap()).
+                type(item.getType()).
+                personnel(Arrays.asList(item.getPersonnel()));
         return this;
     }