diff --git a/app/models/error_report.rb b/app/models/error_report.rb
index 8d1123a..09d79ff 100644
--- a/app/models/error_report.rb
+++ b/app/models/error_report.rb
@@ -65,6 +65,7 @@ class ErrorReport
 
   def make_notice
     @notice = Notice.new(
+      app: app,
       message: message,
       error_class: error_class,
       backtrace: backtrace,
diff --git a/app/models/notice.rb b/app/models/notice.rb
index c5945f6..7916260 100644
--- a/app/models/notice.rb
+++ b/app/models/notice.rb
@@ -12,8 +12,9 @@ class Notice
   field :framework
   field :error_class
   delegate :lines, :to => :backtrace, :prefix => true
-  delegate :app, :problem, :to => :err
+  delegate :problem, :to => :err
 
+  belongs_to :app
   belongs_to :err
   belongs_to :backtrace, :index => true
 
diff --git a/db/migrate/20150926035420_cache_app_on_notice.rb b/db/migrate/20150926035420_cache_app_on_notice.rb
new file mode 100644
index 0000000..c5e7052
--- /dev/null
+++ b/db/migrate/20150926035420_cache_app_on_notice.rb
@@ -0,0 +1,11 @@
+class CacheAppOnNotice < Mongoid::Migration
+  def self.up
+    Notice.no_timeout.each do |n|
+      n.app_id = n.try(:err).try(:problem).try(:app_id)
+      n.save!
+    end
+  end
+
+  def self.down
+  end
+end
diff --git a/spec/fabricators/err_fabricator.rb b/spec/fabricators/err_fabricator.rb
index 91e4b71..23d01f6 100644
--- a/spec/fabricators/err_fabricator.rb
+++ b/spec/fabricators/err_fabricator.rb
@@ -4,6 +4,7 @@ Fabricator :err do
 end
 
 Fabricator :notice do
+  app
   err
   message             'FooError: Too Much Bar'
   backtrace
--
libgit2 0.21.2