diff --git a/src/message/simple_edits.py b/src/message/simple_edits.py
index 25ea3a8..e373eb4 100644
--- a/src/message/simple_edits.py
+++ b/src/message/simple_edits.py
@@ -111,7 +111,5 @@ class ExampleClusterEdit(DataChgClickMessage):
 class ExampleClusterAdd(DataChgClickMessage):
     def update_model(self, model):
         example = self.get_arg(0, Example)
-        
-        max_example_cluster_num = ExampleClusters.first_empty_cluster()
-        example.set_cluster(max_example_cluster_num + 1)
+        example.set_cluster(ExampleClusters.first_empty_cluster())