diff --git a/telebot/util.py b/telebot/util.py
index a6e18e9..fa0e51b 100644
--- a/telebot/util.py
+++ b/telebot/util.py
@@ -239,4 +239,4 @@ def extract_arguments(text):
     """
     regexp = re.("\/\w*(@\w*)*\s*([\s\S]*)",re.IGNORECASE)
     result = regexp.match(text)
-    return result.group(2) if if is_command(text) else None
+    return result.group(2) if is_command(text) else None