diff --git a/route-planning.md b/route-planning.md
index f0ef681..61b37a8 100644
--- a/route-planning.md
+++ b/route-planning.md
@@ -120,7 +120,7 @@ Obliczamy g — koszt przejścia od pola początkowego do pola końcowego, zgodn
                 if tentative_is_better == True:
                     self.came_from[y] = x
                     self.g_score[y] = tentative_g_score
-                    self.f_score[y] = self.g_score[y] + self.hscore(y, koniec)
+                    self.f_score[y] = self.g_score[y] + self.h_score(y, koniec)
 ```