diff --git a/app/models/o_embed_cache.rb b/app/models/o_embed_cache.rb
index 277564d8b..17c4bfe6e 100644
--- a/app/models/o_embed_cache.rb
+++ b/app/models/o_embed_cache.rb
@@ -1,6 +1,7 @@
 class OEmbedCache < ActiveRecord::Base
   serialize :data
   attr_accessible :url
+  validates :data, :presence => true
 
   has_many :posts