diff --git a/app/forms/users/apply_authentication_form.rb b/app/forms/users/apply_authentication_form.rb
index 188ee9a93..2b984fcaa 100644
--- a/app/forms/users/apply_authentication_form.rb
+++ b/app/forms/users/apply_authentication_form.rb
@@ -8,7 +8,7 @@ class Users::ApplyAuthenticationForm
 
 
   def validate_ID_number
-    unless id_number =~ User::VALID_NUMBER_REGEX)
+    unless id_number =~ User::VALID_NUMBER_REGEX
       raise("身份证格式不对")
     end
   end