diff --git a/Set.java b/Set.java
index 513cbe6..68814e2 100644
--- a/Set.java
+++ b/Set.java
@@ -142,6 +142,7 @@ public class Set<T>
                 // ... füge den zur Differenz hinzu
                 neu.add(current.wert);
             }
+            current = current.next;
         }
         
         return neu;