diff --git a/app/controllers/problems_controller.rb b/app/controllers/problems_controller.rb
index 71b77fd..801f8a7 100644
--- a/app/controllers/problems_controller.rb
+++ b/app/controllers/problems_controller.rb
@@ -128,7 +128,6 @@ class ProblemsController < ApplicationController
 
   def search
     ps = Problem.search(params[:search]).for_apps(app_scope).in_env(params[:environment]).all_else_unresolved(params[:all_errs]).ordered_by(params_sort, params_order)
-    selected_problems = params[:problems] || []
     self.problems = ps.page(params[:page]).per(current_user.per_page)
     respond_to do |format|
       format.html { render :index }
diff --git a/app/helpers/form_helper.rb b/app/helpers/form_helper.rb
index ce15967..0463a57 100644
--- a/app/helpers/form_helper.rb
+++ b/app/helpers/form_helper.rb
@@ -5,8 +5,8 @@ module FormHelper
 
     content_tag(:div, :class => 'error-messages') do
       body  = content_tag(:h2, 'Dang. The following errors are keeping this from being a success.')
-      body += content_tag(:ul) do
-        document.errors.full_messages.inject('') {|errs, msg| errs += content_tag(:li, h(msg)) }.html_safe
+      body + content_tag(:ul) do
+        document.errors.full_messages.inject('') {|errs, msg| errs + content_tag(:li, h(msg)) }.html_safe
       end
     end
   end
diff --git a/spec/lib/airbrake_api/v3/notice_parser_spec.rb b/spec/lib/airbrake_api/v3/notice_parser_spec.rb
index 53bcaf1..2d7aa5e 100644
--- a/spec/lib/airbrake_api/v3/notice_parser_spec.rb
+++ b/spec/lib/airbrake_api/v3/notice_parser_spec.rb
@@ -42,7 +42,7 @@ describe AirbrakeApi::V3::NoticeParser do
     params['key'] = app.api_key
 
     report = AirbrakeApi::V3::NoticeParser.new(params).report
-    notice = report.generate_notice!
+    report.generate_notice!
 
     expect(report.error_class).to eq('Error')
     expect(report.message).to eq('Error: TestError')
@@ -58,4 +58,4 @@ describe AirbrakeApi::V3::NoticeParser do
 
     data
   end
-end
\ No newline at end of file
+end
diff --git a/spec/models/notification_service/gtalk_service_spec.rb b/spec/models/notification_service/gtalk_service_spec.rb
index 387fe2b..edf016f 100644
--- a/spec/models/notification_service/gtalk_service_spec.rb
+++ b/spec/models/notification_service/gtalk_service_spec.rb
@@ -2,7 +2,7 @@ describe NotificationServices::GtalkService, type: 'model' do
   it "it should send a notification to gtalk" do
     # setup
     notice = Fabricate :notice
-    problem = notice.problem
+    notice.problem
     notification_service = Fabricate :gtalk_notification_service, :app => notice.app
     problem = notice.problem
 
@@ -94,7 +94,7 @@ describe NotificationServices::GtalkService, type: 'model' do
   it "it should send a notification to room only" do
     # setup
     notice = Fabricate :notice
-    problem = notice.problem
+    notice.problem
     notification_service = Fabricate :gtalk_notification_service, :app => notice.app
     problem = notice.problem
 
--
libgit2 0.21.2