diff --git a/script/fixes/085_fix_invalid_favorites.rb b/script/fixes/085_fix_invalid_favorites.rb
new file mode 100755
index 000000000..5f5a0e3b0
--- /dev/null
+++ b/script/fixes/085_fix_invalid_favorites.rb
@@ -0,0 +1,10 @@
+#!/usr/bin/env ruby
+
+require_relative "../../config/environment"
+
+Favorite.transaction do
+  Favorite.left_outer_joins(:post).where("posts.id": nil).destroy_all
+
+  print "Commit? (yes/no): "
+  raise "abort" unless STDIN.readline.chomp == "yes"
+end