diff --git a/dijkstra.m b/dijkstra.m
index 03a919e..cbfc056 100644
--- a/dijkstra.m
+++ b/dijkstra.m
@@ -9,6 +9,7 @@ function [distanceToNode, parentOfNode, nodeTrajectory] = dijkstra(nbNodes, visi
 %	-visibilityGraph: a matrix containing the distance between connected nodes 
 %		(NaN refers to not connected nodes)
 %		The matrix has a size of (nbNodes+2)x(nbNodes+2)
+%		The first row/col corresponds to the Starting point, the last row/col to the Goal point.
 %
 % Outputs:
 %	- distanceToNode: distance between the current node and its parent