diff --git a/table/table.gd b/table/table.gd
index 303da21..8a3c8cb 100644
--- a/table/table.gd
+++ b/table/table.gd
@@ -470,12 +470,10 @@ func connect_columns(dest_node: Node, event_name: String, callback: String, clmn
             var node = nodes[node_key]
             if nodes.has(conn_key):
                 var conn = nodes[conn_key]
-                var prev_callback = conn[0]
-                var prev_dest_node = conn[1]
-                node.disconnect(event_name, Callable(prev_dest_node, prev_callback))
-            assert (OK == node.connect(event_name, Callable(dest_node, callback).bind([node] + user_data)))
-            nodes[conn_key] = [callback, dest_node]
-
+                node.disconnect(event_name, conn)
+            var conn = Callable(dest_node, callback).bind([node] + user_data)
+            assert (OK == node.connect(event_name, conn))
+            nodes[conn_key] = conn
 
 ##
 func set_rows_text(rows: Array) -> void: