diff --git a/activerecord/lib/active_record/association_preload.rb b/activerecord/lib/active_record/association_preload.rb
index c60850fc77..284dc7dca0 100644
--- a/activerecord/lib/active_record/association_preload.rb
+++ b/activerecord/lib/active_record/association_preload.rb
@@ -96,7 +96,7 @@ module ActiveRecord
         options = reflection.options
 
         conditions = "t0.#{reflection.primary_key_name} #{in_or_equals_for_ids(ids)}"
-        conditions << append_conditions(options, preload_options)
+        conditions << append_conditions(reflection, preload_options)
 
         associated_records = reflection.klass.find(:all, :conditions => [conditions, ids],
         :include => options[:include],
@@ -233,7 +233,7 @@ module ActiveRecord
             end
           end
           conditions = "#{table_name}.#{connection.quote_column_name(primary_key)} #{in_or_equals_for_ids(ids)}"
-          conditions << append_conditions(options, preload_options)
+          conditions << append_conditions(reflection, preload_options)
           associated_records = klass.find(:all, :conditions => [conditions, ids],
                                           :include => options[:include],
                                           :select => options[:select],
@@ -254,7 +254,7 @@ module ActiveRecord
           conditions = "#{reflection.klass.quoted_table_name}.#{foreign_key} #{in_or_equals_for_ids(ids)}"
         end
 
-        conditions << append_conditions(options, preload_options)
+        conditions << append_conditions(reflection, preload_options)
 
         reflection.klass.find(:all,
                               :select => (preload_options[:select] || options[:select] || "#{table_name}.*"),
@@ -270,9 +270,9 @@ module ActiveRecord
         instance_eval("%@#{sql.gsub('@', '\@')}@")
       end
 
-      def append_conditions(options, preload_options)
+      def append_conditions(reflection, preload_options)
         sql = ""
-        sql << " AND (#{interpolate_sql_for_preload(sanitize_sql(options[:conditions]))})" if options[:conditions]
+        sql << " AND (#{interpolate_sql_for_preload(reflection.sanitized_conditions)})" if reflection.sanitized_conditions
         sql << " AND (#{sanitize_sql preload_options[:conditions]})" if preload_options[:conditions]
         sql
       end