diff --git a/test/bfs-spanning-tree/state.ml b/test/bfs-spanning-tree/state.ml
index 1d4dcb22925974f5316a7f3a5c6c4ca21f4084e9..8f2736d341910a4f02734f368c517b010da7ceb0 100644
--- a/test/bfs-spanning-tree/state.ml
+++ b/test/bfs-spanning-tree/state.ml
@@ -1,5 +1,5 @@
 
-let d=10 (* degree() *)
+let d=Algo.max_degree() 
 
 type t = {
   d:int;