diff --git a/app/serializers/each_post_serializer.rb b/app/serializers/each_post_serializer.rb
index 0ae1ce8..510714e 100644
--- a/app/serializers/each_post_serializer.rb
+++ b/app/serializers/each_post_serializer.rb
@@ -14,7 +14,7 @@ class EachPostSerializer < ActiveModel::Serializer
 
   def last_sharer
     return nil if ShareInstance.where(sharable_id: object.id).count == 1
-    user = ShareInstance.where(sharable_id: object.id).last.user
+    user = ShareInstance.where(sharable_id: object.id).last.try(:user)
     user_info_json(user)
   end