diff --git a/CTF/backend/server.py b/CTF/backend/server.py
index 5eb4529..77abd56 100644
--- a/CTF/backend/server.py
+++ b/CTF/backend/server.py
@@ -265,7 +265,10 @@ def plan_next_actions(req):
                         protect_list.remove((f[0],f[1]))
                     else:
                         continue
-        player_moves[p["name"]] = myMap.guideance(p["posX"],p["posY"],dest[0],dest[1])
+        if dest is not None:
+            player_moves[p["name"]] = myMap.guideance(p["posX"],p["posY"],dest[0],dest[1])
+        else:
+            player_moves[p["name"]] = myMap.guideance(p["posX"],p["posY"],p["posX"],p["posY"])
     return player_moves
 
 def game_over(req):