diff --git a/src/main/java/de/hhu/ba/yoshikoWrapper/graphModel/YoshikoCluster.java b/src/main/java/de/hhu/ba/yoshikoWrapper/graphModel/YoshikoCluster.java
index 282c5c7674389421a4f67a973009df9965428698..6b8ebbbd3df0374f80f0c31cddc1197358aa1011 100644
--- a/src/main/java/de/hhu/ba/yoshikoWrapper/graphModel/YoshikoCluster.java
+++ b/src/main/java/de/hhu/ba/yoshikoWrapper/graphModel/YoshikoCluster.java
@@ -176,7 +176,7 @@ public class YoshikoCluster {
 
 	public void delete() {
 		if (subnet != null) {
-			if (CyCore.networkManager.networkExists(subnet.hashCode())) {
+			if (CyCore.networkManager.networkExists(subnet.getSUID())) {
 				CyCore.networkManager.destroyNetwork(subnet);
 			}
 		}