diff --git a/pytools/graph.py b/pytools/graph.py
index fa2a12f8bf0b8f43fd916be905a84217b99a9d26..2dbb09f256ee63cbe54e6ba442612479cbfb85c8 100644
--- a/pytools/graph.py
+++ b/pytools/graph.py
@@ -32,7 +32,7 @@ Graph Algorithms
 .. autofunction:: reverse_graph
 .. autofunction:: a_star
 .. autofunction:: compute_sccs
-.. autoclass:: CycleError
+.. autoexception:: CycleError
 .. autofunction:: compute_topological_order
 .. autofunction:: compute_transitive_closure
 .. autofunction:: contains_cycle