diff --git a/doc/tutorial.rst b/doc/tutorial.rst
index 71b8f4389735f921205eb87440d542fb98fe3c18..3019a47aa90073f8a7d242f15a87e86cfe93a4d9 100644
--- a/doc/tutorial.rst
+++ b/doc/tutorial.rst
@@ -1551,7 +1551,7 @@ information provided. Now we will count the operations:
 
 .. doctest::
 
-    >>> op_map = lp.get_op_map(knl)
+    >>> op_map = lp.get_op_map(knl, subgroup_size=32)
     >>> print(lp.stringify_stats_mapping(op_map))
     Op(np:dtype('float32'), add, workitem) : ...