diff --git a/pysollib/games/sultan.py b/pysollib/games/sultan.py
index 1e9975a7..e0e603a4 100644
--- a/pysollib/games/sultan.py
+++ b/pysollib/games/sultan.py
@@ -1058,7 +1058,7 @@ class Khedive(Game):
             x += l.XS
 
         x, y = l.XM+4*l.XS, l.YM
-        r = range(11)
+        r = list(range(11))
         for i in range(5, 0, -1):
             for j in r[i:-i]:
                 x, y = l.XM+(j-0.5)*l.XS, l.YM+(5-i)*l.YS