diff --git a/lib/generators/simple_form/templates/config/initializers/simple_form.rb.tt b/lib/generators/simple_form/templates/config/initializers/simple_form.rb.tt
index 5f10a127..6ea12bcf 100644
--- a/lib/generators/simple_form/templates/config/initializers/simple_form.rb.tt
+++ b/lib/generators/simple_form/templates/config/initializers/simple_form.rb.tt
@@ -122,10 +122,12 @@ SimpleForm.setup do |config|
   # You can define the class to use on all collection wrappers. Defaulting to none.
   # config.collection_wrapper_class = nil
 
-  # You can wrap each item in a collection of radio/check boxes with a tag, defaulting to :span.
+  # You can wrap each item in a collection of radio/check boxes with a tag,
+  # defaulting to :span. Please note that when using :boolean_style = :nested,
+  # SimpleForm will force this option to be a label.
   # config.item_wrapper_tag = :span
 
-  # You can define a clsas to use in all item wrappers. Defaulting to none.
+  # You can define a class to use in all item wrappers. Defaulting to none.
   # config.item_wrapper_class = nil
 
   # How the label text should be generated altogether with the required text.
diff --git a/lib/simple_form.rb b/lib/simple_form.rb
index 3955b976..88297514 100644
--- a/lib/simple_form.rb
+++ b/lib/simple_form.rb
@@ -49,7 +49,9 @@ module SimpleForm
   mattr_accessor :collection_wrapper_class
   @@collection_wrapper_class = nil
 
-  # You can wrap each item in a collection of radio/check boxes with a tag, defaulting to none.
+  # You can wrap each item in a collection of radio/check boxes with a tag,
+  # defaulting to none. Please note that when using :boolean_style = :nested,
+  # SimpleForm will force this option to be a :label.
   mattr_accessor :item_wrapper_tag
   @@item_wrapper_tag = :span