diff --git a/PathPlanning/Dijkstra/dijkstra.py b/PathPlanning/Dijkstra/dijkstra.py
index f5a4703910..2fee6e928d 100644
--- a/PathPlanning/Dijkstra/dijkstra.py
+++ b/PathPlanning/Dijkstra/dijkstra.py
@@ -143,7 +143,7 @@ def calc_xy_index(self, position, minp):
         return round((position - minp) / self.resolution)
 
     def calc_index(self, node):
-        return (node.y - self.min_y) * self.x_width + (node.x - self.min_x)
+        return node.y * self.x_width + node.x
 
     def verify_node(self, node):
         px = self.calc_position(node.x, self.min_x)