diff --git a/lib/generators/devise/controllers_generator.rb b/lib/generators/devise/controllers_generator.rb
index caa04f1a..d96d3d33 100644
--- a/lib/generators/devise/controllers_generator.rb
+++ b/lib/generators/devise/controllers_generator.rb
@@ -11,7 +11,7 @@ module Devise
         Create inherited Devise controllers in your app/controllers folder.
 
         Use -c to specify which controller you want to overwrite.
-        If you do no specify a controller, all controllers will be created.
+        If you do not specify a controller, all controllers will be created.
         For example:
 
           rails generate devise:controllers users -c=sessions