diff --git a/activerecord/CHANGELOG b/activerecord/CHANGELOG
index f2f79fd823..5192a57159 100644
--- a/activerecord/CHANGELOG
+++ b/activerecord/CHANGELOG
@@ -1,3 +1,5 @@
+* Fix documentation typo introduced in [8250]. Closes #10339 [Henrik N]
+
 *2.0.0 [RC2]* (November 28th, 2007)
 
 * Foxy fixtures: support single-table inheritance.  #10234 [tom]
diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb
index c6e6d24c91..0ee8f84c62 100755
--- a/activerecord/lib/active_record/validations.rb
+++ b/activerecord/lib/active_record/validations.rb
@@ -596,7 +596,7 @@ module ActiveRecord
       # attribute (that maps to a column). When the record is updated, the same check is made but disregarding the record itself.
       #
       # Because this check is performed outside the database there is still a chance that duplicate values
-      # will be inserted in two parrallel transactions.  To guarantee against this you should create a 
+      # will be inserted in two parallel transactions.  To guarantee against this you should create a 
       # unique index on the field. See +create_index+ for more information.
       #
       # Configuration options: