diff --git a/gufe/ligandnetwork.py b/gufe/ligandnetwork.py
index b1366deb..3390f377 100644
--- a/gufe/ligandnetwork.py
+++ b/gufe/ligandnetwork.py
@@ -170,7 +170,7 @@ def enlarge_graph(self, *, edges=None, nodes=None) -> LigandNetwork:
 
         Returns
         -------
-        :class:`.Network :
+        :class:`.Network` :
             a new network adding the given edges and nodes to this network
         """
         if edges is None: