diff --git a/main.py b/main.py
index b9b29c7..c6c1e45 100644
--- a/main.py
+++ b/main.py
@@ -38,10 +38,13 @@ while True:
     elif command == 'CARD':
         Card = 1
     elif command == 'UPDATE':
-        os.system('cd ~/libraryClient')
-        os.system('git pull')
+        if os.name != 'nt':
+            os.system('cd ~/libraryClient')
+        else:
+            os.system('git pull')
     elif command == 'LU':
         Mode=3
+        print('Mode lookup')
     elif command == '':
         pass
     else: