diff --git a/start_hotpots.sh b/start_hotpots.sh
index 33a3090..8296765 100644
--- a/start_hotpots.sh
+++ b/start_hotpots.sh
@@ -1,4 +1,3 @@
-sudo python3 wifi_manager.py
-cd ..
-cd TakwayPlatform
-sudo python3 ws_client.py
\ No newline at end of file
+python3 wifi_manager.py
+cd ~/TakwayPlatform/
+python3 ws_client.py
\ No newline at end of file
diff --git a/wifi_manager.py b/wifi_manager.py
index bbeaa0d..c140ee5 100644
--- a/wifi_manager.py
+++ b/wifi_manager.py
@@ -205,7 +205,8 @@ def load_saved_wifi():
 
 def save_wifi(ssid, password):
     wifi_list = load_saved_wifi()
-    wifi_list.append({'ssid': ssid, 'password': password})
+    if ssid not in [item['ssid'] for item in wifi_list]:
+        wifi_list.append({'ssid': ssid, 'password': password})
     with open('wifi_list.json', 'w') as f:
         json.dump(wifi_list, f)