diff --git a/railties/lib/rails/backtrace_cleaner.rb b/railties/lib/rails/backtrace_cleaner.rb
index 12c27d6e1c5c3..9f72d244f1b55 100644
--- a/railties/lib/rails/backtrace_cleaner.rb
+++ b/railties/lib/rails/backtrace_cleaner.rb
@@ -5,7 +5,7 @@
 
 module Rails
   class BacktraceCleaner < ActiveSupport::BacktraceCleaner # :nodoc:
-    APP_DIRS_PATTERN = /\A(?:\.\/)?(?:app|config|lib|test|\(\w*\))/
+    APP_DIRS_PATTERN = /\A(?:\.\/)?(?:app|config|lib|test|\(\w+(?:-\w+)*\))/
     RENDER_TEMPLATE_PATTERN = /:in [`'].*_\w+_{2,3}\d+_\d+'/
 
     def initialize
diff --git a/railties/test/backtrace_cleaner_test.rb b/railties/test/backtrace_cleaner_test.rb
index a3eccff38033b..0defb6dc94682 100644
--- a/railties/test/backtrace_cleaner_test.rb
+++ b/railties/test/backtrace_cleaner_test.rb
@@ -36,6 +36,15 @@ def setup
     assert_equal 2, result.length
   end
 
+  test "#clean should consider traces that include dasherized Rails application name" do
+    backtrace = [ "(my-app):1",
+                  "/Path/to/rails/railties/lib/rails/commands/console.rb:77:in `start'",
+                  "bin/rails:4:in `<main>'" ]
+    result = @cleaner.clean(backtrace)
+    assert_equal "(my-app):1", result[0]
+    assert_equal 1, result.length
+  end
+
   test "#clean should omit ActionView template methods names" do
     method_name = ActionView::Template.new(nil, "app/views/application/index.html.erb", nil, locals: []).send :method_name
     backtrace = [ "app/views/application/index.html.erb:4:in `block in #{method_name}'"]