diff --git a/lib/boxen/config.rb b/lib/boxen/config.rb
index 975fd5b..3521d05 100644
--- a/lib/boxen/config.rb
+++ b/lib/boxen/config.rb
@@ -54,6 +54,7 @@ module Boxen
         :name      => config.name,
         :puppetdir => config.puppetdir,
         :repodir   => config.repodir,
+        :reponame  => config.reponame,
         :srcdir    => config.srcdir,
         :token     => config.token,
         :user      => config.user
@@ -223,6 +224,26 @@ module Boxen
 
     attr_writer :repodir
 
+    # The repo on GitHub to use for error reports and automatic
+    # updates, in `owner/repo` format. Default is the `origin` of a
+    # Git repo in `repodir`, if it exists and points at GitHub.
+    # Respects the `BOXEN_REPO_NAME` environment variable.
+
+    def reponame
+      override = @reponame || ENV["BOXEN_REPO_NAME"]
+      return override unless override.nil?
+
+      if File.directory? repodir
+        url = Dir.chdir(repodir) { `git config remote.origin.url`.strip }
+
+        if $?.success? && %r|github\.com[/:]([^/]+/[^/]+)| =~ url
+          @reponame = $1.sub /\.git$/, ""
+        end
+      end
+    end
+
+    attr_writer :reponame
+
     # The directory where repos live. Default is
     # `"/Users/#{user}/src"`.
 
diff --git a/test/boxen_config_test.rb b/test/boxen_config_test.rb
index 13da530..4ada4e1 100644
--- a/test/boxen_config_test.rb
+++ b/test/boxen_config_test.rb
@@ -4,6 +4,7 @@ require "boxen/config"
 class BoxenConfigTest < Boxen::Test
   def setup
     @config = Boxen::Config.new
+    @config.repodir = "test/fixtures/repo"
   end
 
   def test_debug?
@@ -100,8 +101,6 @@ def test_initialize
   end
 
   def test_projects
-    @config.repodir = "test/fixtures/repo"
-
     files = Dir["#{@config.repodir}/modules/projects/manifests/*.pp"]
     assert_equal files.size, @config.projects.size
   end
@@ -116,6 +115,7 @@ def test_initialize
   end
 
   def test_repodir
+    @config.repodir = nil
     assert_equal Dir.pwd, @config.repodir
 
     @config.repodir = "foo"
@@ -123,10 +123,50 @@ def test_initialize
   end
 
   def test_repodir_env_var
+    @config.repodir = nil
+
     ENV.expects(:[]).with("BOXEN_REPO_DIR").returns "foo"
     assert_equal "foo", @config.repodir
   end
 
+  def test_reponame
+    @config.reponame = "something/explicit"
+    assert_equal "something/explicit", @config.reponame
+  end
+
+  def test_reponame_env_var
+    ENV.expects(:[]).with("BOXEN_REPO_NAME").returns "env/var"
+    assert_equal "env/var", @config.reponame
+  end
+
+  def test_reponame_git_config
+    @config.expects(:"`").with("git config remote.origin.url").
+      returns "https://github.com/some-org/our-boxen\n"
+
+    assert_equal "some-org/our-boxen", @config.reponame
+  end
+
+  def test_reponame_git_config_bad_exit
+    @config.expects(:"`").with("git config remote.origin.url").returns ""
+    $?.expects(:success?).returns false
+
+    assert_nil @config.reponame
+  end
+
+  def test_reponame_git_config_bad_url
+    @config.expects(:"`").with("git config remote.origin.url").
+      returns "https://spumco.com/some-org/our-boxen\n"
+
+    assert_nil @config.reponame
+  end
+
+  def test_reponame_git_config_git_extension
+    @config.expects(:"`").with("git config remote.origin.url").
+      returns "https://github.com/some-org/our-boxen.git\n"
+
+    assert_equal "some-org/our-boxen", @config.reponame
+  end
+
   def test_srcdir
     @config.expects(:user).returns "foo"
     assert_equal "/Users/foo/src", @config.srcdir