diff --git a/cmd/internal/markov/absorbing.go b/cmd/internal/markov/absorbing.go
index a639650..1564e30 100644
--- a/cmd/internal/markov/absorbing.go
+++ b/cmd/internal/markov/absorbing.go
@@ -106,7 +106,7 @@ func (g *AbsorbingMarkovChain) canBeAbsorbed(u graph.Node, absorbingNodes []grap
 	return false
 }
 
-func (g *AbsorbingMarkovChain) AdjacencyMatrix() mat.Matrix {
+func (g *AbsorbingMarkovChain) AdjacencyMatrix() *mat.Dense {
 	adj := simple.NewDirectedMatrix(g.Nodes().Len(), 0, 0, 0)
 	for edges := g.WeightedEdges(); edges.Next(); {
 		e := edges.WeightedEdge()