diff --git a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java
index 4966acb..21a31ce 100644
--- a/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java
+++ b/be-graphes-algos/src/main/java/org/insa/graphs/algorithm/shortestpath/Label.java
@@ -25,7 +25,7 @@ public class Label implements Comparable<Label>{
         this.sommetCourant = sommetCourant ;
         this.marque = false ;
         this.coutRealise = -1.0 ; //infini
-        this.pere = null ;
+        this.pere = null ; //sommet inexistant
     }
 
     /* METHODES */