diff --git a/Assets/Scripts/Node.cs b/Assets/Scripts/Node.cs
index 31d0918..ce8d472 100644
--- a/Assets/Scripts/Node.cs
+++ b/Assets/Scripts/Node.cs
@@ -57,7 +57,8 @@ public class Node : MonoBehaviour
 
         foreach (GameManager.Connection c in looseConnections)
         {
-            DestroyImmediate(c.lineRenderer.gameObject);
+            if (c.lineRenderer != null)
+                DestroyImmediate(c.lineRenderer.gameObject);
             gm.connections.Remove(c);
         }