diff --git a/examples/custom_states.py b/examples/custom_states.py
index 72c96df9b..a02761286 100644
--- a/examples/custom_states.py
+++ b/examples/custom_states.py
@@ -47,7 +47,7 @@ def start_ex(message):
  
 
 # Any state
-@bot.message_handler(state="*", commands='cancel')
+@bot.message_handler(state="*", commands=['cancel'])
 def any_state(message):
     """
     Cancel state