diff --git a/lib/chrono_model/patches/preloader.rb b/lib/chrono_model/patches/preloader.rb
index c265aee..7fe6b8b 100644
--- a/lib/chrono_model/patches/preloader.rb
+++ b/lib/chrono_model/patches/preloader.rb
@@ -9,8 +9,8 @@ module Patches
     module Preloader
       attr_reader :chronomodel_options
 
-      # We overwrite the initializer in order to pass the +as_of_time+
-      # parameter above in the build_preloader
+      # Overwrite the initializer to set Chronomodel +as_of_time+ and +model+
+      # options.
       #
       def initialize(**options)
         @chronomodel_options = options.extract!(:as_of_time, :model)
diff --git a/lib/chrono_model/time_machine/history_model.rb b/lib/chrono_model/time_machine/history_model.rb
index f3c96d2..a119464 100644
--- a/lib/chrono_model/time_machine/history_model.rb
+++ b/lib/chrono_model/time_machine/history_model.rb
@@ -11,7 +11,6 @@ module HistoryModel
         scope :chronological, -> { order(Arel.sql('lower(validity) ASC')) }
       end
 
-      # ACTIVE RECORD 7 does not call `class.find` but a new internal method called `_find_record`
       def _find_record(options)
         if options && options[:lock]
           self.class.preload(strict_loaded_associations).lock(options[:lock]).find_by!(hid: hid)
@@ -222,8 +221,8 @@ def valid_to
       end
       alias as_of_time valid_to
 
-      # Starting from Rails 6.0, `.read_attribute` will use the memoized
-      # `primary_key` if it detects that the attribute name is `id`.
+      # `.read_attribute` uses the memoized `primary_key` if it detects
+      # that the attribute name is `id`.
       #
       # Since the `primary key` may have been changed to `hid` because of
       # `.find` overload, the new behavior may break relations where `id` is