diff --git a/cmd/internal/markov/absorbing.go b/cmd/internal/markov/absorbing.go
index 1564e30..ecb0fc1 100644
--- a/cmd/internal/markov/absorbing.go
+++ b/cmd/internal/markov/absorbing.go
@@ -139,7 +139,7 @@ func (g *AbsorbingMarkovChain) NewEdge(from, to graph.Node) graph.Edge {
 }
 
 func (g *AbsorbingMarkovChain) NewNode() graph.Node {
-	return &node{Node: g.WeightedDirectedGraph.NewNode()}
+	return &Node{Node: g.WeightedDirectedGraph.NewNode()}
 }
 
 func (g *AbsorbingMarkovChain) SetEdge(e graph.Edge) {
@@ -168,15 +168,15 @@ func (e *weightedEdge) SetAttribute(attr encoding.Attribute) error {
 	return err
 }
 
-type node struct {
+type Node struct {
 	graph.Node
 	dotID string
 }
 
-func (n *node) SetDOTID(id string) {
+func (n *Node) SetDOTID(id string) {
 	n.dotID = id
 }
 
-func (n *node) DOTID() string {
+func (n *Node) DOTID() string {
 	return n.dotID
 }