diff --git a/app/workers/repo_checks_worker.rb b/app/workers/repo_checks_worker.rb
index a922f062..2bebeb4b 100644
--- a/app/workers/repo_checks_worker.rb
+++ b/app/workers/repo_checks_worker.rb
@@ -52,8 +52,8 @@ def repo_summary
   def detect_languages
     repo = Rugged::Repository.new(path)
     project = Linguist::Repository.new(repo, repo.head.target_id)
-
-    top_3 = project.languages.keys.take(3)
+    ordered_languages = project.languages.sort_by { |_, size| size }.reverse.first(3)
+    top_3 = ordered_languages.first(3).map {|l,s| l}
     label_issue(top_3) unless top_3.empty?
   end
 
diff --git a/spec/workers/repo_checks_worker_spec.rb b/spec/workers/repo_checks_worker_spec.rb
index 28075553..96536f44 100644
--- a/spec/workers/repo_checks_worker_spec.rb
+++ b/spec/workers/repo_checks_worker_spec.rb
@@ -72,7 +72,7 @@
   describe "#detect_languages" do
     before do
       repo = OpenStruct.new(head: OpenStruct.new(target_id: 33))
-      expected_languages = OpenStruct.new(languages: {"Ruby"=>176110, "HTML"=>664, "TeX"=>475, "Go"=>21})
+      expected_languages = OpenStruct.new(languages: {"Go"=>21, "HTML"=>664, "Ruby"=>176110, "TeX"=>475, "XML" => 100})
       allow(Rugged::Repository).to receive(:new).and_return(repo)
       allow(Linguist::Repository).to receive(:new).with(repo, 33).and_return(expected_languages)
     end