--- a/src/modules/glm/samplers/AlbertChibFactory.cc
+++ b/src/modules/glm/samplers/AlbertChibFactory.cc
@@ -15,7 +15,7 @@
 
     GLMMethod *
     AlbertChibFactory::newBinary(GraphView const *view,
-				 vector<GraphView const *> const &sub_views,
+				 vector<SingletonGraphView const *> const &sub_views,
 				 vector<Outcome *> const &outcomes,
 				 unsigned int chain) const
     {