diff --git a/app/models/post.rb b/app/models/post.rb
index 3acbf720b..3a757caa9 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -855,6 +855,7 @@ class Post < ActiveRecord::Base
     def add_pool!(pool, force = false)
       return if belongs_to_pool?(pool)
       return if pool.is_deleted? && !force
+      reload
       self.pool_string = "#{pool_string} pool:#{pool.id}".strip
       set_pool_category_pseudo_tags
       update_column(:pool_string, pool_string) unless new_record?
@@ -864,6 +865,7 @@ class Post < ActiveRecord::Base
     def remove_pool!(pool, force = false)
       return unless belongs_to_pool?(pool)
       return if pool.is_deleted? && !force
+      reload
       self.pool_string = pool_string.gsub(/(?:\A| )pool:#{pool.id}(?:\Z| )/, " ").strip
       set_pool_category_pseudo_tags
       update_column(:pool_string, pool_string) unless new_record?