diff --git a/README.md b/README.md
index 5f62af7..ce0b0b1 100644
--- a/README.md
+++ b/README.md
@@ -9,12 +9,14 @@
 
 Find records in the same order of input array.
 
+Forked from [khiav223577/find_with_order](https://github.com/khiav223577/find_with_order)
+
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'find_with_order'
+gem 'find_with_order', git: 'git://github.com/KRaikk/find_with_order.git'
 ```
 
 And then execute:
diff --git a/lib/find_with_order/mysql_support.rb b/lib/find_with_order/mysql_support.rb
index d8dea04..da3ad71 100644
--- a/lib/find_with_order/mysql_support.rb
+++ b/lib/find_with_order/mysql_support.rb
@@ -2,7 +2,7 @@ module FindWithOrder::MysqlSupport
   class << self
     def find_with_order(relation, ids)
       relation.where(id: ids)
-              .order("field(#{relation.table_name}.id, #{ids.join(',')})")
+              .reorder("field(#{relation.table_name}.id, #{ids.join(',')})")
               .to_a
     end
 
@@ -16,8 +16,8 @@ def with_order(relation, column, ids, null_first: false)
       else
         column = column.to_s
       end
-      return relation.order("field(#{column}, #{ids.map(&:inspect).join(',')})") if null_first 
-      return relation.order("field(#{column}, #{ids.reverse.map(&:inspect).join(',')}) DESC")
+      return relation.reorder("field(#{column}, #{ids.map(&:inspect).join(',')})") if null_first
+      return relation.reorder("field(#{column}, #{ids.reverse.map(&:inspect).join(',')}) DESC")
     end
   end
 end
diff --git a/lib/find_with_order/pg_support.rb b/lib/find_with_order/pg_support.rb
index f68a0d5..50c3383 100644
--- a/lib/find_with_order/pg_support.rb
+++ b/lib/find_with_order/pg_support.rb
@@ -4,7 +4,7 @@ def find_with_order(relation, ids)
       # return relation.where(id: ids).order("array_position(ARRAY[#{ids.join(',')}], #{relation.table_name}.id)").to_a #array_position is only support in PG >= 9.5
       return relation.where(id: ids)
                      .joins("JOIN (SELECT id.val, row_number() over() FROM (VALUES(#{ids.join('),(')})) AS id(val)) AS id ON (#{relation.table_name}.id = id.val)")
-                     .order('row_number')
+                     .reorder('row_number')
     end
 
     def where_with_order(relation, column, ids)
@@ -18,6 +18,7 @@ def with_order(relation, column, ids, null_first: false)
         column = column.to_s
       end
       ids = ids.reverse if null_first
+      ids.reject!(&:blank?)
       case ids.first
       when Numeric
         values = ids.join('),(')
@@ -29,8 +30,7 @@ def with_order(relation, column, ids, null_first: false)
       else
         raise "not support type: #{ids.first.class}"
       end
-      return relation.joins("LEFT JOIN (SELECT id.val, row_number() over() FROM (VALUES(#{values})) AS id(val)) AS id ON (#{column} = id.val)")
-                     .order(null_first ? 'row_number DESC' : 'row_number')
+      return relation.joins("LEFT JOIN (SELECT id.val, row_number() over() FROM (VALUES(#{values})) AS id(val)) AS id ON (#{column} = id.val)").reorder(null_first ? 'row_number DESC' : 'row_number')
     end
   end
 end