X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/3c01d2e80dc0e5b6942eb7b965c991f5eba5fef2..647a3a7d3951b1bf7ab7034796e44f1cd2541347:/app/models/diary_entry_subscription.rb

diff --git a/app/models/diary_entry_subscription.rb b/app/models/diary_entry_subscription.rb
index b0a563ea8..8b96f6074 100644
--- a/app/models/diary_entry_subscription.rb
+++ b/app/models/diary_entry_subscription.rb
@@ -1,4 +1,6 @@
 class DiaryEntrySubscription < ActiveRecord::Base
+  self.primary_keys = "user_id", "diary_entry_id"
+
   belongs_to :user
   belongs_to :diary_entry
 end