diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index 91cfc4e849e13061468361422c2f67c577c445f1..2b5b77cd56c722bee046ef0db0a1ed34af638cfd 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -7,8 +7,8 @@ module FinderMethods
     ONE_AS_ONE = "1 AS one"
 
     # Find by id - This can either be a specific id (1), a list of ids (1, 5, 6), or an array of ids ([5, 6, 10]).
-    # If one or more records can not be found for the requested ids, then RecordNotFound will be raised. If the primary key
-    # is an integer, find by id coerces its arguments using +to_i+.
+    # If one or more records can not be found for the requested ids, then ActiveRecord::RecordNotFound will be raised.
+    # If the primary key is not an integer, find by id coerces its arguments using +to_i+.
     #
     #   Person.find(1)          # returns the object for ID = 1
     #   Person.find("1")        # returns the object for ID = 1